Is didymo, rock snot native to the United States?


What is the growth habit of catclaw-vine?


Is lavalle corktree native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for CynosurusechinatusL.?


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Is everblooming acacia native to the United States?


Where can I view images of LinariavulgarisP. Mill.?


What is the scientific name of persian clover?


What is the U.S. Department of Agriculture (USDA) plant symbol for japanese pachysandra?


Where can I view images of BrizaminorL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for tiny vetch?


What is the growth habit of persian clover?


What is the scientific name of common hawthorn?


What is the common name of HypericumcanarienseL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for FlindersiabrayleyanaF. Muell.?


Describe the fruit of QuercusacutissimaCarruthers?

Fruit are large acorns with spreading, curved scales on the involucre. Trees produce large amounts of acorns.


What is the U.S. Department of Agriculture (USDA) plant symbol for EragrostislehmannianaNees?


What is the common name of Nymphoidescristata(Roxb.) O. Ktze.?


What is the U.S. Department of Agriculture (USDA) plant symbol for JuniperusvirginianaL.?


Is fortune meadowsweet native to the United States?


What is the scientific name of europe sage?


Where can I view images of LactucasalignaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for european birch?


What is the common name of RubusidaeusL.?


What is the invasive/noxious status of european waterstarwort and where is it classified as such?

Potentially Invasive, Prohibited (Connecticut)


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for rose clover?


Does african mustard pose any ecological threat?

Brassica tournefortiiprefers disturbed areas such as roadsides and abandoned fields. It is native to Africa, Asia, and Europe.


Where can I view images of common buckthorn, european buckthorn?


What is the common name of AegilopstriuncialisL?


Is gray dogwood native to the United States?


What is the scientific name of boston ivy?

Parthenocissustricuspidata(Sieb. & Zucc.) Planch.


Is HieraciumpiloselloidesVill. native to the United States?


Where can I view images of SolivasessilisRuiz & Pavón?


What is the invasive/noxious status of giant salvinia and where is it classified as such?

Category 1 (Alabama), Invasive (North Carolina), Invasive, Prohibited (Michigan), Noxious (United States), Potentially Invasive, Prohibited (Connecticut), Prohibited (Minnesota), Prohibited (Wisconsin)


What is the U.S. Department of Agriculture (USDA) plant symbol for EricalusitanicaK. Rudolphi?


Is Verbesinaencelioides(Cav.) Benth. & Hook. f. ex Gray native to the United States?


Is changing forget-me-not native to the United States?


What is the scientific name of european crabapple?


Is Carpobrotuschilensis(Molina) N.E. Br. native to the United States?


Where can I view images of Elymusrepens(L.) Gould?


What is the common name of AcaciamelanoxylonR. Br. ex Ait. f.?


Is amur privet native to the United States?


Is this plant invasive to the United States?


What is the growth habit of TrapanatansL.?


What is the scientific name of gray sheoak?


Describe the foliage of oriental lady's thumb?

Leaves are elongate, narrow and pointed at the base and tip. Stems have swollen nodes with papery sheaths (ocrea). Ocrea have long, hair-like bristles on the margin.


What is the invasive/noxious status of RumexacetosellaL. and where is it classified as such?


What is the growth habit of broadleaf dock?


What is the common name of SpartinadensifloraBrongn.?


What is the common name of Strigosellaafricana(L.) Botsch.?


Is Caesalpiniagilliesii(Wall. ex Hook.) Wall. ex D. Dietr. native to the United States?


Describe the flowers of uruguayan vervain?

The small five petaled flowers ofV. montevidensisare lavender to purple and are borne in terminal cymes. They bloom all summer until the first frost.


Describe the fruit of mediterranean clone of caulerpa?

There is no sexual reproduction; propagation is purely vegetative. 0.5 in. (1.2 cm) long stem and stolon fragments can grow into new algae. These fragments are easily transported by boating and fishing activities.


Is EpilobiumhirsutumL. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for annual wormwood?


What is the scientific name of philippine ground orchid?


What is the scientific name of deptford pink?


What is the U.S. Department of Agriculture (USDA) plant symbol for japanese dodder?


What is the U.S. Department of Agriculture (USDA) plant symbol for red clover?


What is the growth habit of canadian horseweed?


What is the growth habit of QuercusacutissimaCarruthers?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for GenistalinifoliaL.?


What is the growth habit of CorylusavellanaL.?


What is the invasive/noxious status of golden bamboo and where is it classified as such?

Category 2 (Alabama), Invasive (North Carolina), Prohibited (New York), Tier 2 (Maryland)


What is the U.S. Department of Agriculture (USDA) plant symbol for MomordicacharantiaL.?


What is the growth habit of corn speedwell?


What is the growth habit of beach naupaka?


Fruit are 0.2 in. (5 mm) wide, often hairy and bristly clinging to clothes and animal hair. Each fruit contains a single brown seed.


Where can I view images of umbrella plant?


What is the growth habit of MesembryanthemumcrystallinumL.?


Is Cotulaaustralis(Sieber) Hook. f. native to the United States?


Where can I view images of SyringavulgarisL.?


Where can I view images of AgrostiscapillarisL.?


Is CornusracemosaLam. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for hairypink?


Is longleaf speedwell native to the United States?


Is Ipomoeapurpurea(L.) Roth native to the United States?


What is the growth habit of asiatic dayflower?


Where can I view images of Ecliptaprostrata(L.) L.?


Describe the fruit of Eichhorniacrassipes(Mart.) Solms?

This plant reproduces chiefly by vegetative means.


What is the scientific name of meadow sage?


What is the growth habit of scarlet spiderling?


Does CasuarinaequisetifoliaL. pose any ecological threat?

Casuarina equisetifoliais native to Australia and southeast Asia and was introduced into Florida in the late 1800’s.


Describe the flowers of Sphaerophysasalsula(Pallas) DC.?

Flowering occurs from May to July, when red-orange flowers develop in the axils of the leaves, near the tip of the stem. Flowers are pea-like, stalked and 0.5 in. (12-14 mm) long.


What is the growth habit of PopulusbalsamiferaL.?


The axillary clusters of small, sweet-smelling, white to brown flowers develop in the fall.


What is the U.S. Department of Agriculture (USDA) plant symbol for brittleleaf naiad?


Describe the foliage of pale yellow iris, yellow flag iris?

Broad, sword-shaped leaves are stiff, erect and glaucous. They measure between 1.6-3.3 ft. (0.5-1 m) long and 0.4-1.2 in. (1-3 cm) wide. Rhizomes are pink-fleshed and 0.4-1.6 in. (1-4 cm) in diameter.


Where can I view images of haspan flatsedge?


Is this plant invasive to the United States?


Is colonial bentgrass native to the United States?


Describe the foliage of common burdock, lesser burdock?

Stem leaves are large, heart-shaped and very hairy on the undersides. Basal leaves are dark green, heart-shaped and up to 1 ft. (0.3 m) long.


Where can I view images of FoeniculumvulgareP. Mill.?


Is TrifoliumincarnatumL. native to the United States?


Does AcaciamelanoxylonR. Br. ex Ait. f. pose any ecological threat?

Acacia melanoxylonis native to eastern Australia. This tree grows fast and tall, up to 148 ft. (45 m) tall. It tolerates a wide range of conditions and soils but grows better in colder climates. It invades areas such as natural vegetation, commercial timber plantations and farmland.


What is the scientific name of european centaury?


What is the scientific name of common motherwort?


The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Where can I view images of flowering rush?


Where can I view images of bengal trumpet?


What is the scientific name of sourgrass?


What is the U.S. Department of Agriculture (USDA) plant symbol for deeprooted sedge?


Is MadiasativaMolina native to the United States?


Is CannabissativaL native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for AnthriscuscaucalisM. Bieb.?


Is slenderleaf iceplant native to the United States?


What is the growth habit of DeutziascabraThunb.?


Does curly dock pose any ecological threat?

Rumex crispusis found in grasslands, pastures and arable land. It is native to Africa, temperate and tropical Asia and Europe.


What is the growth habit of VitisviniferaL.?


Describe the fruit of Firmianasimplex(L.) W. Wight?

F. simplexfruit are peculiar pods which split open into petal-like sections to reveal the small, round seeds.


Is Catalpaspeciosa(Warder) Warder ex Engelm. native to the United States?


What is the growth habit of LantanacamaraL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for pale flax?


What is the scientific name of smooth brome?

Bromusinermisssp. inermis var. inermisLeyss.


Is TagetesminutaL. native to the United States?


Is this plant invasive to the United States?


What is the growth habit of Luzulaluzuloides(Lam.) Dandy & Wilmott?


Where can I view images of thymeleaf sandwort?


What is the scientific name of european spindletree?


What is the common name of FicuselasticaRoxb.?


What is the U.S. Department of Agriculture (USDA) plant symbol for CyperusmicroiriaSteud.?


Describe the fruit of kentucky bluegrass?

Open, spreading, pyramidal panicle, 2-8 in. (5.1-20.3 cm) long, with panicle branches whorled in groups of 3 to 5; spikelets contain 3 to 5 florets; lemmas awnless but cobwebby-hairy at base.


What is the common name of OxalisstrictaL.?


What is the growth habit of Triadicasebifera(L.) Small?


Is CorylusavellanaL. native to the United States?


Is Schoenoplectiellamucronata(L.) J. Jung & H. K. Choi native to the United States?


Does Asparagusasparagoides(L.) Druce pose any ecological threat?

Asparagus asparagoidessmothers native vegetation with thick foliage and dense mats of roots. It can be found on cliffs, roadsides and ditches.


What is the scientific name of golden polypody?


Describe the foliage of AgrostisgiganteaRoth?

Leaves are bluish green or greyish blue, narrow, sharp and about 0.4 in. (0.95 cm) wide and 8 in. (20.3 cm) long. The stems are slender, growing to 30-40 in. (76.2-101.6 cm) tall.


Where can I view images of Ipomoeapurpurea(L.) Roth?


Where can I view images of western salsify?


What is the growth habit of corn buttercup?


Does japanese hop pose any ecological threat?

These vines can grow to 35 ft. (10.7 m) in one growing season, allowing them to infest large areas crowding and out competing native vegetation.Humulus japonicuswas introduced into North America in the mid-to-late 1800s as an ornamental.


Does HieraciumglomeratumFroel. pose any ecological threat?

H. glomeratumoutcompetes native species and invades along roadsides, forest clearings, open fields, pastures and other disturbed sites.


Describe the appearance of BerberisthunbergiiDC.?

Berberis thunbergiiis a small deciduous shrub from 2-8 ft. (0.6-2.4 m) tall. The thin, grooved branches have thin, straight spines.Berberis thunbergiiis very shade-tolerant and can form dense stands which shade out and displace native species.


Where can I view images of common viper's bugloss, blueweed?


Is shameplant native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for MarrubiumvulgareL.?


What is the scientific name of corn speedwell?


Is umbrella plant native to the United States?


Does TaraxacumofficinaleG.H. Weber ex Wiggers pose any ecological threat?

Taraxacum officinalecan be a major weed problem for turf and ornamental managers. In turf, it forms clumps that cause poor footing for athletic fields and golf courses. When this plant infests turfgrass and ornamental plantings, it forms dense circular mats of leaves that crowd out desirable species and reduce the vigor of those plants that survive.


What is the growth habit of EuonymuseuropaeusL.?


What is the growth habit of PunicagranatumL.?


What is the growth habit of SalsolasodaL.?


What is the common name of Spartinafoliosa x alterniflora?


What is the growth habit of western waterhemlock?


What is the invasive/noxious status of water lettuce and where is it classified as such?

Category 1 (Alabama), Class C (Alabama), Potentially Invasive (Connecticut), Prohibited (Wisconsin), Watch List (Michigan)


Where can I view images of dixie silverback fern?


Is this plant invasive to the United States?


Fruits are small berries that range from yellow to purple to blue in color.


Is ZanthoxylumamericanumP. Mill. native to the United States?


Where can I view images of seifriz's chamaedorea?


Where can I view images of PhalarisaquaticaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for rose glorybower?


What is the scientific name of glenwoodgrass?


What is the growth habit of narrowleaf firethorn?


Is GeraniumrobertianumL. native to the United States?


Where can I view images of bull thistle?


What is the growth habit of CryptostegiamadagascariensisBojer ex Dcne.?


What is the growth habit of AgrostisgiganteaRoth?


Where can I view images of MarsileaquadrifoliaL.?


What is the invasive/noxious status of TrapanatansL. and where is it classified as such?

Class C (Alabama), Invasive, Prohibited (Connecticut), Prohibited (Minnesota), Prohibited (New York), Prohibited (Wisconsin), Watch List, Prohibited (Michigan)


What is the U.S. Department of Agriculture (USDA) plant symbol for seashore paspalum?


Describe the appearance of multiflora rose?

Rosa multiflorais a multistemmed, thorny, perennial shrub that grows up to 15 ft. (4.6 m) tall. The stems are green to red arching canes which are round in cross section and have stiff, curved thorns.


Where can I view images of amur honeysuckle?


What is the scientific name of waxyleaf privet?


The flowers are hanging catkins which appear with the emerging leaves in early spring.


Is this plant invasive to the United States?


Where can I view images of PhyllostachysaureosulcataMcClure?


Is PotamogetoncrispusL. native to the United States?


What is the scientific name of paperflower?


Is greater creeping spearwort native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for CasuarinacunninghamianaMiq.?


What is the common name of GeraniumhomeanumTurcz.?


What is the invasive/noxious status of purple loosestrife and where is it classified as such?

Category 2 (Alabama), Class B (Alabama), Invasive (Delaware), Invasive (DOC, IPC) (Missouri), Invasive (North Carolina), Invasive, Prohibited (Connecticut), Invasive, Restricted (Michigan), Prohibited (Alaska), Prohibited (Minnesota), Prohibited (New York), Restricted (Wisconsin)


Describe the appearance of Cayratiajaponica(Thunb.) Gagnepain?

Cayratia japonicais a perennial vine with compound leaves.


What is the growth habit of silverleaf cotoneaster?


What is the U.S. Department of Agriculture (USDA) plant symbol for lady's-mantle?


What is the common name of PhytolaccaamericanaL.?


Describe the appearance of EpilobiumhirsutumL.?

Epilobium hirsutumis a semi-aquatic perennial herbaceous plant. The plant is erect, branching, covered with soft hairs and grows up to 6 ft. (1.8 m) tall.E. hirsutumis native to Africa, temperate Asia and Europe.


What is the growth habit of glossy buckthorn?


What is the scientific name of hydrilla?


The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Where can I view images of uruguayan pampas grass?


What is the U.S. Department of Agriculture (USDA) plant symbol for bluehead gilia?


Describe the flowers of CentaureanigrescensWilld?

Flowers are radiant or discoid, in few-headed corymbiform arrays, borne on leafy-bracted peduncles. The involucres are 0.6-0.7 in. (15-18 mm), subcylindric to ovoid or campanulate, usually longer than wide, even when pressed. Flowering summer-fall (Jun-Oct).


What is the growth habit of Oplismenusundulatifolius(Ard.) Roem. & Schult.?


What is the growth habit of chinese privet?


Is this plant invasive to the United States?


Is AcerpseudoplatanusL. native to the United States?


Where can I view images of LespedezabicolorTurcz.?


Describe the flowers of Mirabilisnyctaginea(Michx.) MacM.?

Flowers are magenta, trumpet shaped, 0.5 in. (1.3 cm) across, and are found in clusters of 3-5. They bloom in early summer and usually only open in the afternoon and at night, closing in the morning.


Does didymo, rock snot pose any ecological threat?

Didymosphenia geminatacan be found in a Found in rivers, streams, and lakes. Prefers flowing water sources. It blankets streams or lake beds; blocks plants from sunlight and animals that eat plants from reaching them; and greatly reduces dissolved oxygen content in water.


What is the growth habit of SorbusaucupariaL.?


Is thorny olive native to the United States?


V. bonariensisfruits are nutlets. Each flower produces four seeds.


Is tussock dropseed native to the United States?


What is the scientific name of white clover?


What is the U.S. Department of Agriculture (USDA) plant symbol for GeraniumdissectumL.?


Describe the flowers of japanese honeysuckle?

Flowering occurs from April to July, when showy, fragrant, tubular, whitish-pink flowers develop in the axils of the leaves. The flowers turn cream-yellow as they age.


What is the common name of SalixcinereaL.?


What is the growth habit of hairy wallaby grass?


What is the scientific name of paragrass?


What is the U.S. Department of Agriculture (USDA) plant symbol for TradescantiaspathaceaSw.?


What is the common name of AlcearoseaL.?


Describe the appearance of deeprooted sedge?

Cyperus entrerianusis a wetland sedge that invades disturbed areas throughout the southeastern United States. It is a robust, up to 40 in. (1.02 m) tall, grass-like plant with deeply set, thick rhizomes and dark purple to black leaf bases.


Is shortpod mustard native to the United States?


Is father-and-child plant native to the United States?


Is this plant invasive to the United States?


Is siberian peashrub native to the United States?


What is the growth habit of UlmusproceraSalisb.?


Is TaraxacumerythrospermumAndrz. ex Besser native to the United States?


Where can I view images of Sisymbriumofficinale(L.) Scop.?


What is the growth habit of gray poplar?


What is the common name of Ranunculusacrisvar. acrisL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for elmleaf blackberry?


Describe the foliage of yellow starthistle?

Leaves that are located near the base are petiolate, dissected, 2-6 in. (5-15.2 cm) long. These certain leaves are normally absent during the time of flowering. Leaves further up the stem are 0.4-4 in. (1-10 cm) long.


Describe the appearance of RobiniapseudoacaciaL.?

Robinia pseudoacaciais a deciduous tree that, while native to parts of the United States, has spread to and become invasive in other parts of the country. Trees grow from 40-100 ft. (12-30 m) in height. Trees grow upright in forests, but develop an open growth form in more open areas. The bark of black locust is light brown, rough, and becomes very furrowed with age.


What is the scientific name of sheep fescue?

Festucatrachyphylla(Hack.) Krajina nom. illeg.


Describe the fruit of NandinadomesticaThunb.?

Fruits are green berries that mature to a bright red and are very attractive to birds.


What is the scientific name of purple cudweed?


What is the invasive/noxious status of DioscoreabulbiferaL. and where is it classified as such?

Class A (Alabama), Invasive (North Carolina), Watch List (Alabama)


What is the U.S. Department of Agriculture (USDA) plant symbol for cereal rye?


Is PhormiumtenaxJ.R. & G. Forst. native to the United States?


Where can I view images of Genistamonspessulana(L.) L. Johnson?


The fruit are small and lanceolate-oblong in shape, measuring 0.1-0.2 in.(3-5 mm) long. Seeds are wind dispersed.


Is PinussylvestrisL. native to the United States?


Does sweet breath of spring pose any ecological threat?

Several species of exotic bush honeysuckles occur and distinguishing different species can be difficult. However, all have similar effects.Lonicera fragrantissimareadily invades open woodlands, old fields and other disturbed sites. Its rapid spread is attributed to birds and mammals dispersing the seeds. It can form a dense understory thicket which can restrict native plant growth and tree seedling establishment.Lonicera fragrantissimais native to eastern Asia and was first introduced into North America in the late 1800s. It has been planted widely as an ornamental and for wildlife food and cover.


Describe the appearance of Genistamonspessulana(L.) L. Johnson?

Genista monspessulanais a perennial leafy leguminous shrub that grows up to 9.8 ft. (3 m) tall. The main stem is grey and hairless.


What is the U.S. Department of Agriculture (USDA) plant symbol for reed canarygrass?


What is the U.S. Department of Agriculture (USDA) plant symbol for ponderosa pine?


Describe the flowers of CentaureavirgataLam.?

Flowering occurs in early to mid-summer, when pink flowers develop in heads at the tips of the branches.


Is Ceratocephalatesticulata(Crantz) Bess. native to the United States?


Is rose glorybower native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for CuscutaapproximataBab.?


Describe the fruit of HesperismatronalisL.?

The siliques (long slender fruits) are 2-4 in. (5-10 cm) in length and contain a large number of seeds.


What is the common name of Youngiajaponica(L.) DC.?


What is the growth habit of black mustard?


Describe the foliage of DioscoreaalataL.?

Leaves are opposite, 8 in. (20.3 cm) long and narrowly heart-shaped with long petioles. The stems are square with the corners compressed into wings.


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Is high mallow native to the United States?


What is the common name of Kyllinganemoralis(J.R. Forst. & G. Forst.) Dandy ex Hutch. & Dalziel?


Where can I view images of CastillejaarvensisCham. & Schlecht?


Glabrous, distinctly veined on blade and sheath; blades flat to somewhat keeled, 4-8 in. (10.2-20.3 cm) long, up to 0.38 in. (0.95 cm) wide, tapering toward the tip, with midrib prominent on upper surface; leaves rolled in buds.


What is the U.S. Department of Agriculture (USDA) plant symbol for LactucasalignaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for hairy willowherb?


Where can I view images of BarbareavulgarisAit. f.?


Does Cirsiumarvense(L.) Scop. pose any ecological threat?

Cirsium arvenseis most commonly found in agricultural and disturbed sites, or sites that are undergoing restoration. It is shade intolerant and therefore is rarely found within wooded sites, except in clearings. It is found in some dry, sandy sites, but more commonly on the edges of wet habitats such as stream banks and lake shores. In the western and northern U.S. it presents a significant problem in prairie and riparian habitats.


Is TyphalatifoliaL. native to the United States?


What is the common name of DeutziascabraThunb.?


What is the U.S. Department of Agriculture (USDA) plant symbol for RobiniapseudoacaciaL.?


Where can I view images of IpomoealacunosaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for GlechomahederaceaL.?


Where can I view images of Cenchrussetaceus(Forssk.) Morrone?


Does australian-pine pose any ecological threat?

Casuarina equisetifoliais native to Australia and southeast Asia and was introduced into Florida in the late 1800’s.


What is the common name of CarlinavulgarisL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for AcaciaconfusaMerr?


What is the invasive/noxious status of Bassiascoparia(L.) A.J. Scott and where is it classified as such?

Potentially Invasive, Prohibited (Connecticut)


What is the U.S. Department of Agriculture (USDA) plant symbol for ElaeagnusumbellataThunb.?


What is the growth habit of Lespedezathunbergii(DC.) Nakai?


Is this plant invasive to the United States?


Is wine raspberry native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for SolanumaviculareG. Forst.?


What is the common name of Hieraciumspp.L.?


What is the U.S. Department of Agriculture (USDA) plant symbol for clammy goosefoot?


Does russian olive pose any ecological threat?

AlthoughElaeagnus angustifoliais not considered to be invasive in New England at this time, in the western part of the United States it is considered invasive as well as a noxious weed in some states. It grows especially well in riparian situations and has been documented as out-competing the native plains cottonwood (Populus deltoides). It has been planted along roads and highways in New England because of its drought and salt tolerance. Nitrogen-fixing nodules allow this plant to survive in adverse conditions. Autumn olive (Elaeagnus umbellata), its invasive relative, has a similar biology and is already widely invasive in New England.


What is the common name of RosalucieaeFranch. & Rochebr. ex Crép.?


What is the growth habit of javanese bishopwood?


Describe the foliage of narrowleaf bittercress?

The leaves (6-20) are thin and membranous. The basal rosette of leaves are pinnately divided. Each leaf has 3-11 leaflets with rounded lobes. The leaves along the stem are also pinnately divided, with sharply toothed or lacerate leaflets. These leaves are sagittate auriculate (a pair of fleshy blunt projections turned downward) at their base, which is an important diagnostic characteristic.


Leaves are flashy and arranged in a rosette. They measure 0.75-6 in. (2-15 cm) in length. The leaves are green to grayish-green, and have dense white hairs and parallel veins on their surface. As its common name indicates, the plant resembles a floating head of lettuce.


Is field poppy native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for PopulustremulaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for balloonvine?


Is kikuyugrass native to the United States?


Does bull thistle pose any ecological threat?

Cirsium vulgarecan invade almost any type of disturbed area, such as forest clearcuts, riparian areas and pastures. Plants can form dense thickets, displacing other vegetation. The spiny nature of the plant renders it unpalatable to wildlife and livestock and reduces the forage potential of pastures.Cirsium vulgareis native to Europe, western Asia, and northern Africa. It is thought to have been introduced to the eastern United States during colonial times and the western United States in the late 1800s. It is currently found in all 50 states.


Is white bladderflower native to the United States?


Describe the appearance of Puerariamontanavar. lobata(Willd.) Maesen & S. Almeida?

Pueraria montana var. lobatais a climbing, deciduous vine capable of reaching lengths of over 100 ft. (30.5 m) in a single season. Its fleshy tap roots can reach 7 in. (18 cm) in width and grow to 9 ft. (3.8 m) deep. These roots can weigh up to 400 lbs. (180 kg).


Does large gray willow pose any ecological threat?

S. cinereareadily invades riparian habits, brackish wetlands on coastland, wet forests, alpine bogs, as well as disturbed and undisturbed land on national park land and elsewhere.S. cinereacan grow on a wide range of soils. It can tolerate permanent water logging and a pH down to 3.5.


What is the U.S. Department of Agriculture (USDA) plant symbol for kingdevil hawkweed?


Is english catchfly native to the United States?


What is the scientific name of sour orange?

Citrusx aurantiumL. (pro sp.) [maxima × reticulata]


What is the growth habit of prickly-ash?


What is the U.S. Department of Agriculture (USDA) plant symbol for SolanumamericanumP. Mill.?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for queensland maple?


What is the U.S. Department of Agriculture (USDA) plant symbol for EulophiagramineaLindl.?


Flowers occur in clusters and are star-shaped with 5 white to violet petals and a yellow center.


Does Thymelaeapasserina(L.) Coss. & Germ. pose any ecological threat?

T. passerinagrows aggressively; is unpalatable to livestock; and can be found in rangeland areas, disturbed sites and dry pastures.


What is the U.S. Department of Agriculture (USDA) plant symbol for IsatistinctoriaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for field brome?


Is european spindletree native to the United States?


Is red sorrel native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for TanacetumvulgareL.?


Is GeraniumdissectumL. native to the United States?


Describe the fruit of perennial veldtgrass?

Ehrharta calycinaseeds are small and dark brown. Fruits ripen in summer. It only reproduces through seed.


What is the scientific name of palay rubbervine?

Cryptostegiagrandiflora(Roxb. ex R. Br.) R. Br.


Is roughstalk bluegrass native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for ViolaodorataL.?


Is Tamarixaphylla(L.) Karst. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for valamuerto?


What is the invasive/noxious status of Colocasiaesculenta(L.) Schott and where is it classified as such?


What is the growth habit of Asparagusasparagoides(L.) Druce?


Is ConvolvulusarvensisL. native to the United States?


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Is MyriophyllumspicatumL. native to the United States?


What is the growth habit of HyoscyamusnigerL.?


Is AcanthusmollisL. native to the United States?


Where can I view images of Stellariapallida(Dumort.) Crépin?


Describe the foliage of creeping buttercup?

Leaves are 3-parted; terminal division is stalked; divisions are broadly ovate to subrotund; also cleft or lobed; often having sharp teeth along the margins; apex of leaves is obtuse to acuminate; leaves measure 0.4-3.3 in. (1-8.5 cm) long and 0.6-4 in. (1.5-10 cm) wide; petioles are long and pubescent, measuring 0.5-10 in. (1.25-25 cm).


What is the growth habit of Vulpiamyuros(L.) K.C. Gmel.?


What is the scientific name of common periwinkle?


Where can I view images of princess-flower?


Where can I view images of corn speedwell?


What is the growth habit of SolanumdiphyllumL.?


Is PeganumharmalaL. native to the United States?


Does absinth wormwood pose any ecological threat?

Artemisia absinthiuminvades open and disturbed sites such as pastures, rangelands, crop land, stream banks, prairies and old fields. The plant is native to Europe and was first introduced into the United States in the mid-1800s.


Fruits are yellowish to reddish brown, woody, spined, ridged, and crow like in appearance. Seeds are 0.12-0.16 in. (3-4 mm) long.


What is the growth habit of carpetgrass?


What is the U.S. Department of Agriculture (USDA) plant symbol for cultivated garlic?


Describe the appearance of PersicariawallichiiGreuter & Burdet?

Persicaria wallichiiis a perennial plant that can grow from 23.6-78.7 in. (60-200 cm) tall.


Does PoabulbosaL. pose any ecological threat?

P. bulbosaovertakes open fields, yards and roadsides.


Seeds are 0.6-0.8 in. (1.5-2 cm) long. Dozens are made by each flower head and are spread by the wind and tide.S. anglicacan also spread through underground stems.


What is the growth habit of creeping beggarweed?


Describe the appearance of leatherleaf mahonia?

Mahonia bealeiis an evergreen shrub that can grow from 5-10 ft. (1.5-3 m) tall.


What is the U.S. Department of Agriculture (USDA) plant symbol for princesstree?


Is this plant invasive to the United States?


Is OxalisstrictaL. native to the United States?


What is the common name of Citrustrifoliata(L.) Raf.?


Is QuercusacutissimaCarruthers native to the United States?


Does VerbenaincomptaP. W. Michael pose any ecological threat?

V. incomptais native to South America. It is drought and heat tolerant and is very common along roadsides, new forest plantations, forest edges, right-of-ways and other disturbed areas.Verbena incomptais very similar toV. bonariensisandV. montevidensis. All are invasive species.


What is the U.S. Department of Agriculture (USDA) plant symbol for Mirabilisnyctaginea(Michx.) MacM.?


Is white willow native to the United States?


Describe the foliage of DactylisglomerataL.?

Leaves have a bluish hue and grow up to 0.5 in. (1.3 cm) wide, folded when immature but later flat, with prominent white midrib on the under side.


What is the common name of Elaeagnusumbellatavar. parvifolia(Wall. ex Royle) C.K. Schneid.?


Is lawn burweed native to the United States?


What is the growth habit of SalviasclareaL.?


What is the common name of Ageratinaaltissimavar. altissima(L.) King & H. Rob.?


What is the growth habit of japanese callicarpa?


Where can I view images of RaphanussativusL.?


What is the growth habit of TyphalatifoliaL.?


Describe the appearance of SalviniamolestaD. S. Mitchell?

Salvinia molestais an aquatic fern that floats on the surface of the water. Submerged fronds are “stringy” and resemble roots.


Is Pileamicrophylla(L.) Liebm. native to the United States?


Does princess-flower pose any ecological threat?

Tibouchina urvilleanacan be found in natural and planted forests, disturbed areas, urban areas, and shrublands. It is native to southern Brazil.


What is the U.S. Department of Agriculture (USDA) plant symbol for bridalwreath spiraea?


What is the common name of BerberisjulianaeC.K. Schneid.?


Centaurea jaceaproduces small light brown, plumeless seeds; about 12 per head.


Is Digitariaciliaris(Retz.) Koel native to the United States?


What is the growth habit of japanese pagoda tree?


What is the U.S. Department of Agriculture (USDA) plant symbol for yellow rocket?


Is AesculushippocastanumL. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for EricatetralixL.?


Is Urticadioicassp. dioicaL. native to the United States?


What is the growth habit of smooth cat's ear?


Is this plant invasive to the United States?


Describe the fruit of Mycelismuralis(L.) Dumort.?

Achenes are approximately 0.13 in. (0.33 cm) long, several-nerved, and black or brown with white pappus that may disperse seeds long distances by wind.


Is Sileneflos-cuculi(L.) Clairv. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for honduras pine?


What is the U.S. Department of Agriculture (USDA) plant symbol for kudzu?


Is council tree native to the United States?


Is squarrose knapweed native to the United States?


Is ViburnumtinusL. native to the United States?


What is the growth habit of Axonopusfissifolius(Raddi) Kuhlm.?


What is the growth habit of ThunbergiaalataBojer ex Sims?


What is the U.S. Department of Agriculture (USDA) plant symbol for northern catalpa?


What is the U.S. Department of Agriculture (USDA) plant symbol for AcaciadealbataLink?


Is PrunuslaurocerasusL. native to the United States?


Is CistuscreticusL. native to the United States?


What is the scientific name of wards weed?


Describe the appearance of Nymphoidespeltata(S.G. Gmel.) Kuntze?

Nymphoides peltatais an herbaceous, perennial, aquatic plant that has stout, branching stems up to 0.1 in. (2-3 mm) thick. It is often found rooted in the mud of still bodies of water.


The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Where can I view images of Arctothecacalendula(L.) Levyns?


Describe the flowers of CynaracardunculusL.?

Flower heads are discoid, large, and seen in loose clusters on top of the stalk. The involucres are hemispheric, 2 in. (5 cm) in diameter having stout spines at the tips. Flowers are purple to blue, slender tubes, and linear.


Is Rorippasylvestris(L.) Bess. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for leafy spurge?


What is the growth habit of torpedograss?


Where can I view images of rangoon creeper?


What is the U.S. Department of Agriculture (USDA) plant symbol for japanese knotweed?


Describe the appearance of SaponariaofficinalisL.?

Saponaria officinalisis a vespertine flower, and a common perennial plant from the carnation family (Caryophyllaceae).


Is coast tarweed native to the United States?


What is the common name of LoniceramorrowiiGray?


What is the U.S. Department of Agriculture (USDA) plant symbol for CupressusmacrocarpaHartw. ex Gord.?


What is the common name of SpondiaspurpureaL.?


Is Chamaecristanictitans(L.) Moench native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Hemerocallisfulva(L.) L.?


Describe the foliage of VitexrotundifoliaL. f.?

Leaves are oval, silvery-gray and 1-2 in. (2.5-5 cm) long.


Is this plant invasive to the United States?


Fruits are dry, smooth, slightly winged and flattened on back. Fruits each contain two seeds, which are dispersed in the fall.


What is the invasive/noxious status of Ardisiajaponica(Thunb.) Blume and where is it classified as such?


What is the common name of Viciasativassp. nigra(L.) Ehrh.?


Does PoaannuaL. pose any ecological threat?

Poa annuais primarily a weed of lawns and turfgrass, found throughout the United States.


Describe the fruit of LigustrumvulgareL.?

The abundant fruits are spherical, 0.3-0.05 in. (1-1.3 cm) long. Fruit begins green and ripens to a dark purple to black color and persists into winter. Birds and wildlife eat the fruit and disperse the seeds. Seed soil viability is about one year. It also colonizes by root sprouts.


Where can I view images of CrupinavulgarisCass.?


Describe the fruit of sericea lespedeza?

Fruit is a flat ovate to round single-seeded pod 0.12-0.15 in. (3-4 mm) wide. Pods are clustered in terminal axils, scattered along the stem, and clasped by persistent sepals.


Is two-horned trapa native to the United States?


Fruit are small, hairy seed pods that are spread by wind.


What is the scientific name of weeping lovegrass?


Where can I view images of BocconiafrutescensL.?


Is Cedrusdeodara(Roxb. ex D. Don) G. Don f. native to the United States?


What is the invasive/noxious status of chamber bitter and where is it classified as such?


What is the U.S. Department of Agriculture (USDA) plant symbol for AcaciabaileyanaF. Muell.?


What is the common name of Spiraeajaponicavar. fortunei(Planch.) Rehder?


What is the scientific name of winged burning bush?


What is the scientific name of white spanishbroom?


Does silkoak pose any ecological threat?

Grevillea robustaprefers disturbed areas including disturbed rainforests and along riverbanks. It is native to Australia.


Is PyrusbetulifoliaBunge native to the United States?


Describe the foliage of Vincetoxicumrossicum(Kleopov) Barbarich?

Leaves are opposite, dark green, oval, shiny, 3-4 in. (7.6-10.2 cm) long and 2-3 in. (5.1-7.6 cm) wide. They are attached to the vine by a petiole about 0.4 in. (1 cm).


Is SpergulaarvensisL. native to the United States?


Describe the flowers of woolly distaff thistle?

Flowers are disk shaped, yellow, 1-1.4 in. (25-35 mm) long. Receptacles are cone- shaped. Blooming occurs from July to August.


What is the U.S. Department of Agriculture (USDA) plant symbol for australasian geranium?


What is the common name of DaucuscarotaL.?


What is the common name of Viciatetrasperma(L.) Schreb.?


Fruits are drupes, 0.25-0.5 in. (0.6-1.3 cm) in diameter and bright green (black when mature).


Is this plant invasive to the United States?


Is common hawkweed native to the United States?


Where can I view images of smooth brome?


What is the growth habit of CuscutaapproximataBab.?


Where can I view images of showy rattlebox?


What is the scientific name of black peppermint?


What is the U.S. Department of Agriculture (USDA) plant symbol for LinumbienneMill.?


Is Menthax piperitaL. (pro sp.) native to the United States?


Where can I view images of EragrostislehmannianaNees?


What is the U.S. Department of Agriculture (USDA) plant symbol for MyoporumlaetumG. Forst.?


Does bighead knapweed pose any ecological threat?

Centaurea macrocephalawill out-compete grasses and other forage species, reducing food sources for wildlife and livestock. It is very difficult to remove once established. It is native to Turkey.


Fruits are capsules that are elliptical, and 0.39-0.47 in. (10-12 mm) long.


Where can I view images of morrow's honeysuckle?


Describe the foliage of LeonuruscardiacaL.?

The opposite leaves vary in size and shape. Leaves have long petioles and are slightly pubescent. Leaves become smaller and less lobed as they rise up the stem. The base of each leaf is somewhat wedge-shaped.


Is spanish arborvine native to the United States?


What is the scientific name of spanish arborvine?


What is the U.S. Department of Agriculture (USDA) plant symbol for callery pear (bradford pear)?


Ficus caricais a deciduous tree that can grow up to 22.6-32.8 ft. (6.9-10 m) in height. It can easily be spotted with its smooth grey bark.


The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Where can I view images of GlauciumflavumCrantz?


Where can I view images of Samaneasaman(Jacq.) Merr.?


Is black knapweed native to the United States?


Describe the fruit of oriental lady's thumb?

Seeds are smooth, dark colored, dry, and 3 angled.


Is this plant invasive to the United States?


Where can I view images of european water chestnut?


What is the invasive/noxious status of AcerpalmatumThunb. and where is it classified as such?


What is the scientific name of annual honesty?


Where can I view images of EgeriadensaPlanch.?


Where can I view images of SolanumtriflorumNutt.?


Is CuscutajaponicaChoisy native to the United States?


What is the growth habit of Stenotaphrumsecundatum(Walt.) Kuntze?


Where can I view images of hybrid cattail?


Describe the foliage of IrispseudacorusL.?

Broad, sword-shaped leaves are stiff, erect and glaucous. They measure between 1.6-3.3 ft. (0.5-1 m) long and 0.4-1.2 in. (1-3 cm) wide. Rhizomes are pink-fleshed and 0.4-1.6 in. (1-4 cm) in diameter.


What is the growth habit of Albizialebbeck(L.) Benth?


Describe the fruit of UtriculariainflataWalter?

Fruits are capsules containing many small seeds. The fruit stalk can grow up to 1.4 in. (35 mm) long.


Describe the appearance of canada thistle?

Cirsium arvense, a rhizomatous perennial grows from 1-5 ft. (0.3-1.5 m) tall. Roots can grow deep into the ground. Stems do not have conspicuous spines.


What is the common name of Liriopemuscari(Dcne.) Bailey?


What is the common name of SenecioglomeratusDes. ex Poir.?


Where can I view images of Knautiaarvensis(L.) Coult.?


Where can I view images of DigitalispurpureaL.?


What is the scientific name of arizona cypress?


Is common lilac native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for common pepperweed?


What is the U.S. Department of Agriculture (USDA) plant symbol for Cotoneasterspp.Medik.?


What is the invasive/noxious status of glossy privet and where is it classified as such?


Describe the flowers of smooth bedstraw?

The small white flowers are borne in a terminal cyme. The white corolla has 4 lobes (rarely 3) which are pointed at the tip. There is a pair of ovoid green carpels at the base of the flower.


Is BromussecalinusL. native to the United States?


What is the common name of LactucaserriolaL.?


Where can I view images of CentaureacalcitrapaL.?


Where can I view images of LinumbienneMill.?


What is the invasive/noxious status of amur corktree and where is it classified as such?

Prohibited (New York), Prohibited (Wisconsin)


What is the U.S. Department of Agriculture (USDA) plant symbol for AlliumvinealeL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for common selfheal?


What is the common name of CasuarinaglaucaSieb. ex Spreng?


Is malfurada native to the United States?


Is this plant invasive to the United States?


What is the scientific name of syrian beancaper?


Is camelthorn native to the United States?


What is the scientific name of curly dock?


Is AsclepiasspeciosaTorr native to the United States?


Is crack willow native to the United States?


What is the invasive/noxious status of black dog-strangling vine, black swallowwort and where is it classified as such?

Invasive  (Michigan), Invasive, Prohibited (Connecticut), Prohibited (New York), Prohibited/Restricted (Wisconsin)


Is MalvamoschataL. native to the United States?


What is the common name of Paulowniatomentosa(Thunb.) Sieb. & Zucc. ex Steud.?


What is the growth habit of lakeshore nutrush?


What is the U.S. Department of Agriculture (USDA) plant symbol for camelthorn?


What is the U.S. Department of Agriculture (USDA) plant symbol for australian cheesewood?


Does chinese parasoltree pose any ecological threat?

Firmiana simplexis beginning to be reported more often along roadsides and other disturbed areas. This plant is self-fertile which means it only takes one tree to produce fertile seeds. The prolific seed production along with its quick growth and aggressive competition makeF. simplexa candidate for EDRR - Early Detection & Rapid Response program in the warmer regions of the United States.


What is the U.S. Department of Agriculture (USDA) plant symbol for IpomoeaaquaticaForssk.?


Is chinese elm native to the United States?


Describe the foliage of EchiumplantagineumL.?

Rosette leaves are 2-7.9 in. (5-20 cm) long, ovate, petiolate, and prominent venation. Cauline leaves are oblong to lanceolate, and can be cordate at the base.


What is the common name of Echinochloacolona(L.) Link?


Describe the foliage of Spartinapatens(Ait.) Muhl.?

The light greenS. patensleaf blades are narrow ranging from 0.04-0.16 in. (1-4 mm) wide at the base with inrolled margins. The internode is firm and ligules are about 0.02 in. (0.5 mm) long. The leaves are deciduous, with new growth each year.


Where can I view images of giant hogweed?


What is the scientific name of guineagrass?


What is the U.S. Department of Agriculture (USDA) plant symbol for Richardiagrandiflora(Cham. & Schlecht.) J.A. & J.H. Schultes?


Is this plant invasive to the United States?


Where can I view images of malta starthistle?


Is white cockle native to the United States?


What is the scientific name of cogongrass?


Describe the fruit of CabombacarolinianaA. Gray?


Fruit pods are densely hairy, ovoid to oblong, 0.6-1 in. (1.5-2.5 cm) long, 0.12-0.2 in. (3-5 mm) wide with 3 to 6 seeds released explosively when ripe. Seeds are strophiolate.


What is the scientific name of cootamundra wattle?


Is job's tears native to the United States?


Describe the flowers of AsphodelusfistulosusLinnaeus?

Flowers are 0.75 in. (1.9 cm) across with 6 petals each white to pink with a brown or reddish stripe along the center and alternating along the branches.


Describe the flowers of japanese wisteria?

Lavender, pink or white flowers are fragrant, very showy and abundant and occur in dangling clusters in the spring. Flowers clusters are 9-20 in. (22.9-50.8 cm) long.


What is the U.S. Department of Agriculture (USDA) plant symbol for ThlaspialliaceumL.?


Describe the flowers of PeganumharmalaL.?

The white, five-petal flowers have green sepals and yellow stamens. They are present from late spring to early fall in the axils of the leaves.


Where can I view images of Exochordaracemosa(Lindl.) Rehd.?


What is the common name of SpergulaarvensisL.?


Is twoleaf watermilfoil native to the United States?


Is PinusradiataD. Don native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for AesculusglabraWilld.?


What is the growth habit of Cedrusdeodara(Roxb. ex D. Don) G. Don f.?


What is the growth habit of HibiscussyriacusL.?


Describe the appearance of wild parsnip?

Pastinaca sativais a biennial/perennial herb that looks and smells similar to cultivated parsnip and can grow up to 4 ft. (1.2 m) in height.


What is the scientific name of treedaisy?


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Describe the appearance of EgeriadensaPlanch.?

Egeria densais a submersed aquatic plant that invades freshwater systems throughout much of the United States. Often confused with hydrilla,Egeria densahas a smooth midrib on the underside of the leaf, whereas hydrilla has small teeth.


What is the U.S. Department of Agriculture (USDA) plant symbol for Lophostemonconfertus(R. Br.) P.G. Wilson & Waterhouse?


What is the common name of Typhax glaucaGodr. [angustifolia x latifolia]?


Describe the foliage of SpartinadensifloraBrongn.?

Leaf (blade) margins in-rolled, 1/8 to 1/3 inches wide at the base. Blade at a 15-35 degree angle to the stem. Internodes firm.


Describe the fruit of birdsfoot trefoil?

Fruits are pods that occur in head-like clusters. Each pod is brown to black, cylindrical, 0.6-1.4 in. (1.5-3.5 cm) long, contains up to 49 seeds and has a persistent style at the apex.


What is the common name of CyperusinvolucratusRottb?


What is the scientific name of african mustard?


What is the U.S. Department of Agriculture (USDA) plant symbol for Veronicaserpyllifoliassp. serpyllifoliaL.?


What is the common name of SalixviminalisL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for greater creeping spearwort?


Where can I view images of Pouteriacampechiana(Kunth) Baehni?


What is the U.S. Department of Agriculture (USDA) plant symbol for LamiummaculatumL.?


Is VerbascumblattariaL. native to the United States?


Where can I view images of HypericumperforatumL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for hedge maple?


Where can I view images of Rorippasylvestris(L.) Bess.?


Describe the fruit of ZygophyllumfabagoL.?

Seed pods are up to 1.5 in. (3.8 cm) long, oblong and ribbed.


What is the scientific name of australian almond?


What is the U.S. Department of Agriculture (USDA) plant symbol for chinese privet?


What is the growth habit of Merremiatuberosa(L.) Rendle?


What is the growth habit of RhizophoramangleL.?


What is the invasive/noxious status of japanese hop and where is it classified as such?

Invasive (DOC, IPC) (Missouri), Potentially Invasive, Prohibited (Connecticut), Prohibited (New York), Prohibited/Restricted (Wisconsin)


What is the scientific name of coconut palm?


Does PinusthunbergiiParl. pose any ecological threat?

P. thunbergiiprefers full sun and can tolerate a wide range of soil types. It is tolerant to both drought and high salinity. The climate of the southern half of the United States is suitable for this tree.


What is the U.S. Department of Agriculture (USDA) plant symbol for motherwort?


What is the invasive/noxious status of PachysandraterminalisSieb. & Zucc. and where is it classified as such?


Is MirabilisjalapaL. native to the United States?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for smallflower morningglory?


Is Melilotusofficinalis(L.) Lam. native to the United States?


Where can I view images of CentaureadiffusaLam.?


Describe the flowers of japanese barberry?

The pale-yellow flowers occur in drooping clusters of 2-5 and develop in mid-spring to early summer.


What is the U.S. Department of Agriculture (USDA) plant symbol for Centellaasiatica(L.) Urban?


What is the scientific name of italian plumeless thistle?


Is japanese pachysandra native to the United States?


What is the growth habit of Brassicajuncea(L.) Czern?


What is the U.S. Department of Agriculture (USDA) plant symbol for rabbitfoot clover?


Does CichoriumintybusL. pose any ecological threat?

C. intybusprefers well-drained or moderately drained soils along roadsides, railroads, disturbed sites, waste ground, and cultivated fields. Although it is mostly limited to roadsides and waste places, it can encroach upon higher grade dry prairies habitats. It is listed as a noxious weed in some states.C. intybusresembles native Showy Blue Lettuce (Mulgedium pulchellum).


Is HeliotropiumamplexicauleL. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for MatricariadiscoideaDC.?


Describe the flowers of creeping buttercup?

Flowers are bright yellow and appear in May to July. They are about 1 in. (2.5 cm) across and have 5-7 obovate petals that exceed the spreading sepals. Each of the petals measures 0.3-0.6 in. (8-15 mm) in length. The receptacle of the flower is usually hispid, but may rarely be glabrous.


Describe the fruit of RhamnuscatharticaL.?

Appearing in the fall, the small, purple to black fruit are 0.25 in. (0.6 cm) in diameter. The fruit contains 3-4 seeds. Birds and other wildlife eat the fruit and disperse the seeds.


What is the U.S. Department of Agriculture (USDA) plant symbol for creeping liriope?


Where can I view images of UlmuspumilaL.?


Is PaspalumscrobiculatumLinnaeus native to the United States?


What is the common name of Carrichteraannua(L.) DC.?


Where can I view images of ponderosa pine?


Where can I view images of broadleaf plantain?


What is the U.S. Department of Agriculture (USDA) plant symbol for quinine?


What is the common name of Costusspeciosus(Koenig) Sm.?


What is the growth habit of Malushupehensis(Pamp.) Rehder?


Is finestem needlegrass native to the United States?


Is HydrangeapaniculataSieb. native to the United States?


What is the scientific name of watergrass?


Is Broussonetiapapyrifera(L.) L'Hér. ex Vent. native to the United States?


Is this plant invasive to the United States?


Is brown knapweed native to the United States?


Describe the flowers of PotamogetoncrispusL.?

Flowering occurs in the summer to early fall, when emergent flowers develop. Flowers are brown, inconspicuous and wind pollinated.


Raphanus sativushas a variety of different colors which range from white, pink, red, and purple radishes. The root vegetable usually can grow up to 1.6-3.1 in. (4-8 cm) in diameter.


Where can I view images of Malusspp.P. Mill.?


Is macartney rose native to the United States?


The seeds are dense, cylindrical, symmetrical spike-like panicle, 2-5 in. (5-12.7 cm) long. The seeds have little hairs on them.


Where can I view images of common barberry?


What is the growth habit of ErythrinavariegataL.?


Describe the appearance of yellow sweet-clover?

Melilotus albais an annual to biennial herb that can grow from 3-8 ft. (0.9-2.4 m) tall.


Where can I view images of PrunuspadusL.?


No fruits or seeds typically outside of its native range. The plant spreads through rhizomes and stem nodes that come in contact with the soil.


Is limnophila native to the United States?


Does Arctothecaprostrata(Salisb.) Britten pose any ecological threat?

Capeweed is a troublesome weed in pastures, crops and home gardens. In newly sown pastures it can smother grass and clover seedlings, and in drier regions it can often dominate overgrazed pastures. It can also taint milk and high nitrate levels in plants have caused livestock deaths.


What is the growth habit of hairy willowherb?


What is the invasive/noxious status of leatherleaf mahonia and where is it classified as such?


Is nettleleaf velvetberry native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for MalvaparvifloraL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for bladder campion?


The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Is palmleaf dewberry native to the United States?


Is TrifoliumdubiumSibthorp native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for starch grape hyacinth?


Is denseflower cordgrass native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Cirsiumvulgare(Savi) Ten.?


What is the common name of CentaureanigrescensWilld?


Where can I view images of french broom?


Describe the flowers of OnopordumacanthiumL.?

The flower heads are purple and measure 1-2 in. (2.5-5 cm) in diameter. All of the bracts of the involucre are tipped with flat, pale, orange-colored spines. Flowering occurs from July to October.


Is DaturainoxiaMill. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Campsisradicans(L.) Seem. ex Bureau?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for amur silvergrass?


Describe the appearance of CentaureajaceaL.?

Centaurea jaceais a perennial plant that grows 1-4 ft. (0.3-1.2 m) tall. The stems are ridged and may have purple stripes.


What is the U.S. Department of Agriculture (USDA) plant symbol for Albizialebbeck(L.) Benth?


Is HolcuslanatusL. native to the United States?


Describe the flowers of PanicumrepensL.?

Flowering occurs nearly year round. Flowers develop in branched, open inflorescences that are 2.8-7.1 in. (7-18 cm) long.


Is HypochaerisglabraL. native to the United States?


What is the scientific name of dyer's woad?


What is the U.S. Department of Agriculture (USDA) plant symbol for MedicagopolymorphaL.?


Is orchardgrass native to the United States?


Is LythrumvirgatumL. native to the United States?


What is the growth habit of BromusjaponicusThunb.?


Is colocynth native to the United States?


Is Clerodendrumindicum(L.) Kuntze native to the United States?


Where can I view images of Cotulaaustralis(Sieber) Hook. f.?


Is big quakinggrass native to the United States?


Is europe sage native to the United States?


Is CannaindicaL. native to the United States?


What is the common name of Torilisarvensis(Huds.) Link?


Describe the appearance of tatarian honeysuckle?

Lonicera tataricais a multistemmed, upright, woody, deciduous shrub that grows up to 10 ft. (3 m) tall. The bark is light gray and can often peel in vertical strips.


Where can I view images of ReynoutriajaponicaSieb. & Zucc.?


Is this plant invasive to the United States?


Is Colocasiaesculenta(L.) Schott native to the United States?


Describe the flowers of HyoscyamusnigerL.?

Flowering occurs in spring to early fall. Flowers are cream to green, five-lobed, 2 in. (5 cm) wide and have purple throats.


What is the growth habit of asian swordfern?


Where can I view images of birdseye pearlwort?


The flowers give way to small, red (turning black), bead-like fruit.


What is the growth habit of TaraxacumofficinaleG.H. Weber ex Wiggers?


What is the growth habit of spiny amaranth?


What is the U.S. Department of Agriculture (USDA) plant symbol for pomegranate?


What is the U.S. Department of Agriculture (USDA) plant symbol for ArtemisiaannuaL.?


Is japanese hop native to the United States?


What is the common name of Dipsacussativus(L.) Honckeny?


What is the growth habit of trumpet-tree?


Is green bristlegrass native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for common ragweed?


What is the scientific name of silversheath knotweed?


What is the scientific name of kingdevil hawkweed?


Where can I view images of rose of sharon?


Describe the foliage of TamarixparvifloraDC.?

Leaves are small, scale-like, gray-green in color, and overlap along the stem. The bark is smooth and reddish on younger plants, turning brown and furrowed with age.


What is the U.S. Department of Agriculture (USDA) plant symbol for DalbergiasissooRoxb. ex DC.?


What is the common name of Cyclosorusdentatus(Forssk.) Ching?


Describe the foliage of Hieraciumx floribundumWimmer & Grab. [caespitosum x lactucella]?

Most of the leaves are basal and range from 1.5-5 in. (3.8-12.7 cm) long. The leaf blades are spatula shaped and pilose.


What is the U.S. Department of Agriculture (USDA) plant symbol for Persicarialongiseta(Bruijn) Kitagawa?


What is the scientific name of tansy ragwort?


What is the U.S. Department of Agriculture (USDA) plant symbol for CommelinabenghalensisL.?


What is the growth habit of bulbous bluegrass?


What is the scientific name of tropical needlegrass?


Where can I view images of Arrhenatherumelatius(L.) Beauv. ex J.& K. Presl?


Where can I view images of Silenelatifoliassp. alba(Mill.) Greuter & Burdet?


What is the scientific name of russian thistle?


Describe the fruit of Cirsiumarvense(L.) Scop.?

Fruits are tiny, 0.1 in. (2-3 mm) long, about 0.04 in. (1 mm) in diameter, with a white to light brown pappus.


Describe the appearance of Neyraudiareynaudiana(Kunth) Keng ex A.S. Hitchc.?

Neyraudia reynaudianais a perennial, bunch grass that can grow to 10 ft. (3 m) tall.


Is ViciavillosaRoth native to the United States?


What is the common name of Broussonetiapapyrifera(L.) L'Hér. ex Vent.?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Abutilongrandifolium(Willd.) Sweet?


What is the U.S. Department of Agriculture (USDA) plant symbol for siberian crabapple?


Where can I view images of Strigaasiatica(L.) Kuntze?


Where can I view images of BromushordeaceusL.?


Is sorghum (type unspecified) native to the United States?


What is the growth habit of common coleus?


Where can I view images of AcernegundoL.?


Is mexicantea native to the United States?


Is Taeniatherumcaput-medusae(L.) Nevski native to the United States?


What is the growth habit of sericea lespedeza?


What is the common name of TaraxacumofficinaleG.H. Weber ex Wiggers?


What is the U.S. Department of Agriculture (USDA) plant symbol for SedumsarmentosumBunge?


Fruit are rounded drupes and bright red. Each fruit contains a single seed. The seeds are easily spread by birds and other wildlife.


Is common mouse-ear chickweed native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for PhoenixdactyliferaL.?


What is the scientific name of field poppy?


What is the scientific name of balsam poplar?


Where can I view images of BromussecalinusL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for SalsolacollinaPallas?


Is this plant invasive to the United States?


Is ElaeagnusmultifloraThunb. native to the United States?


What is the growth habit of ViburnumplicatumtomentosumMiq.?


Describe the appearance of lily of the valley vine?

Salpichroa origanifoliabegins as an upright herbaceous plant but stems become prostrate and square over time. It has stout spreading roots and rhizomes. It is native to the temperate regions South America and can now be found across the southern United States as well as Australia, Canada and Europe.


What is the U.S. Department of Agriculture (USDA) plant symbol for autumn olive?


Is yellow floating heart native to the United States?


Landoltia punctataspreads mainly through vegetative budding from two pouches at base of the frond. New fronds often remain attached to original frond by a short stem. You often see clusters of several fronds linked together. This species may sometimes reproduce sexually, producing seed.


Is GnaphaliumuliginosumL. native to the United States?


25-30 seeds can be found on one fruit and have fine white bristles which aid in wind dispersal. The plant can spread by seed, stolon, and rhizome.


Where can I view images of RumexcrispusL.?


Where can I view images of Chamaesycehirta(L.) Millsp.?


Where can I view images of hyssop loosestrife?


Where can I view images of PinusstrobusL.?


Where can I view images of TradescantiaspathaceaSw.?


Is mouse barley native to the United States?


Where can I view images of RuelliasimplexC. Wright?


Describe the foliage of japanese stiltgrass?

The leaves are pale-green, alternate, lance-shaped, 1-3 in. (2.5-7.6 cm) long, asymmetrical with a shiny, off-center midrib. Upper and lower leaf surface is slightly pubescent. A silvery line runs down the center of the blade. Stems usually droop.


What is the common name of SalviaglutinosaL.?


Where can I view images of OnopordumacanthiumL.?


Is Torilisarvensisssp. arvensis(Huds.) Link native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for field madder?


Is DioscoreabulbiferaL. native to the United States?


What is the growth habit of thymeleaf speedwell?


Coccinia grandisis a perennial herbaceous vine. Also known as baby watermelon, it can grow up to 9 ft. (2.7 m) in length. In one day, it can grow up to 4 in. (10.2 cm).


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Where can I view images of johnsongrass?


Where can I view images of SetariafaberiHerrm.?


Describe the appearance of SetariafaberiHerrm.?

Setaria faberiis an annual grass that can reach 2-5 ft. (0.61-1.5 m) in height.


Describe the appearance of common cattail?

Typha latifoliais a perennial aquatic herb that can reach up to 6.6 to 9.8 ft. (2-3 m) tall.


Is Silenecoronaria(L.) Clairv. native to the United States?


Where can I view images of eastern redcedar?


Describe the appearance of RanunculusacrisL.?

Ranunculus acrisis a short lived perennial herbaceous plant. The plant is erect, hairy, grows from 10-40 in. (25.4-101.6 cm) tall and has fibrous roots.R. acrisis native to temperate Asia and Europe.


Is meadow foxtail native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for LactucacanadensisL.?


What is the common name of Tamarixaphylla(L.) Karst.?


What is the growth habit of deeprooted sedge?


What is the growth habit of sweet alyssum?


What is the U.S. Department of Agriculture (USDA) plant symbol for Torilisjaponica(Houtt.) DC.?


Is guineagrass native to the United States?


What is the common name of Lactucatatarica(L.) C.A. Mey.?


Raphanus sativusinvades fields, roadsides, and waste areas. It is native to the Mediterranean.


What is the U.S. Department of Agriculture (USDA) plant symbol for Centaureastoebessp. micranthos(Gugler) Hayek?


What is the U.S. Department of Agriculture (USDA) plant symbol for chinese violet?


Is this plant invasive to the United States?


Is hawkweed oxtongue native to the United States?


Is nit grass native to the United States?


What is the common name of EmiliafosbergiiD.H. Nicols.?


What is the growth habit of Capsellabursa-pastoris(L.) Medik.?


What is the growth habit of FrangulaalnusMill.?


Is SpartiumjunceumL. native to the United States?


Does medusahead pose any ecological threat?

T. caput-medusawas first collected in Oregon, in 1887. Plants invade dry, open lands with frequent disturbance such as fields and pastures. It is native to the Mediterranean.


What is the U.S. Department of Agriculture (USDA) plant symbol for common mediterraneangrass?


What is the invasive/noxious status of russian olive and where is it classified as such?

Invasive (North Carolina), Potentially Invasive, Prohibited (Connecticut), Restricted (Wisconsin)


Is limpograss native to the United States?


What is the growth habit of jersey cudweed?


Does chinese elm pose any ecological threat?

Ulmus parvifoliacan be found in a variety of different habitat types such as meadow, prairie, and landscaping. It prefers full to partial sun, and well drained soils.


What is the common name of Corydalisincisa(Thunb.) Pers.?


Is garden vetch native to the United States?


Describe the fruit of AegilopstriuncialisL?

Grain 0.25 in. (0.64 cm) long, resembling a wheat kernel.


What is the scientific name of egyptian broomrape?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for jeffrey pine?


Is Phragmitesaustralisssp. australis(Cavanilles) Trinius ex Steudel native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for golden polypody?


First year plants develop as a basal rosette of felt-like leaves. Basal leaves are 4-12 in. (10.2-30.5 cm) long, 1-5 in. (2.5-12.7 cm) wide and covered with woolly hairs. Cauline (stem) leaves are decurrently alternate and decrease in size towards the apex.


Describe the fruit of CarexkobomugiOhwi?


What is the common name of TragopogonporrifoliusL.?


Where can I view images of coppery mesemb?


What is the U.S. Department of Agriculture (USDA) plant symbol for hemp/marijuana (sativa)?


What is the common name of Poapratensisssp. pratensisL.?


What is the common name of UlexeuropaeusL.?


What is the growth habit of Mirabilisnyctaginea(Michx.) MacM.?


What is the common name of AgrostisavenaceaJ.F. Gmel.?


Is mother of thyme native to the United States?


Is AmaranthusspinosusL native to the United States?


What is the scientific name of dotted smartweed?


What is the U.S. Department of Agriculture (USDA) plant symbol for west indian raspberry?


What is the scientific name of bridal broom?


Is FicariavernaHuds. native to the United States?


What is the growth habit of RanunculusrepensL.?


What is the common name of PrunuspadusL.?


Is this plant invasive to the United States?


Describe the flowers of Hydrillaverticillata(L. f.) Royle?

Only the female flowers of this dioecious plant have been found in the United States, which means no viable seed are produced.


Foliage is opposite, glossy and hairless, some-what thick, with margins slightly rolled under. Leaves are heart-shaped to somewhat triangular to elliptic, 1.5-2.5 in. (4-6 cm) long and 1-1.5 in. (2.5-4 cm) wide, with petioles 0.2-0.4 in. (5-10 mm) long.


Where can I view images of SaginaprocumbensL.?


Does carrotwood pose any ecological threat?

Cupaniopsis anacardioidesis found in coastal areas and within disturbed wetlands. It is native to Australia, Indonesia, and New Guinea.


What is the growth habit of CenchrusechinatusL.?


Is soapbush native to the United States?


Does Fatouavillosa(Thunb.) Nakai pose any ecological threat?

Fatoua villosais native to East Asia and occurs in wetlands and other moist, shaded areas. It is problematic in greenhouses and nurseries. The first known population in the United States was in Louisiana in 1964.


What is the U.S. Department of Agriculture (USDA) plant symbol for carpet bugle?


What is the scientific name of subterranean clover?


Describe the appearance of AcaciaauriculiformisA. Cunningham ex Benth.?

Acacia auriculiformisis a fast-growing, crooked, gnarly tree in the family Fabaceae. It is an evergreen tree ranging from 65 ft. (20 m) tall. It has a compact spread and is often multi-stemmed. The gray-white bark often shows vertical fissures. It has no thorns. The roots normally spread only shallowly. The young growth is usually glaucous. The leaf litter ofAcacia auriculiformisis thought to be allelopathic.


What is the scientific name of meadow salsify?


What is the U.S. Department of Agriculture (USDA) plant symbol for SalsolakaliL.?


What is the growth habit of Firmianasimplex(L.) W. Wight?


What is the common name of Epilobiumbillardierianumssp. cinereum(A. Rich.) P.H. Raven & Engelhorn?


What is the common name of Vitexagnus-castusL.?


Is american black nightshade native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for sour cherry?


Describe the appearance of Loniceramaackii(Rupr.) Herder?

Lonicera maackiiis a woody perennial shrub that can grow up to 16.5 ft. (5 m) in height.


What is the scientific name of petite-licorice?

Plecostachysserpyllifolia(P.J.Bergius) Hilliard & B.L.Burtt


What is the U.S. Department of Agriculture (USDA) plant symbol for DigitariaerianthaSteud.?


Does english holly pose any ecological threat?

Ilex aquifoliumcan grow in shaded or sunny areas and is often found in forests. It is native to south and central Europe.


Helichrysum petiolareis an evergreen plant with simple leaves. The aromatic leaves are arranged opposite one another. They are silvery grey and wooly-tomentose. The leaves are petiolate and ovate with entire margins.


R. acrisflowers have shiny yellow petals up to 1.25 in. (3.2 cm) wide. Flowers have sepals about half the size of the petals. Flowers bloom from May-Oct.


Is surinam cherry native to the United States?


Flowers are small, yellow to white in color, and clustered in groups of 15-30 flowers. Flowers bloom in early summer.


Describe the foliage of ValerianaofficinalisL.?

The basal and stem leaves are similar and are opposite. They are pinnately divided into 11-21 lanceolate segments that have dentate margins (some are entire). As the leaves go up the stems, the petioles get shorter. The leaves often have a few hairs on the underside.


Describe the fruit of TamarixparvifloraDC.?


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Describe the appearance of Alnusglutinosa(L.) Gaertn.?

Alnus glutinosais a tree in the birch family that can grow up to 50 ft (15.24 m) tall with the crown spreading from 20-40 ft (6.1-12.2 m) wide. It can be single or multi-stemmed, with a smooth greyish-green bark that turns a speckled grayish-brown. It is native across Europe, temperate Asia, and north Africa. It has been planted extensively in North America as an ornamental tree and for erosion control.


Is CakilemaritimaScop. native to the United States?


Is PyracanthacoccineaM. Roemer native to the United States?


What is the scientific name of bristle basketgrass?


What is the growth habit of tree marigold?


What is the scientific name of ragweed parthenium?


Describe the flowers of smooth cordgrass?

Flowering occurs in July to November, when densely packed clusters of tan flowers develop.


Is cranberry viburnum, european highbush cranberry native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for TrifoliumaureumPollich?


Is bulbous canarygrass native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for european water-clover?


What is the U.S. Department of Agriculture (USDA) plant symbol for nettleleaf velvetberry?


What is the common name of Setariapumila(Poir.) Roemer & J.A. Schultes?


What is the U.S. Department of Agriculture (USDA) plant symbol for CarlinavulgarisL.?


What is the growth habit of Ludwigiapalustris(L.) Ell.?


What is the scientific name of changing forget-me-not?


What is the growth habit of CyperusrotundusL.?


What is the growth habit of common saltwort?


Describe the flowers of floating bladderwort?

Flowers are yellow and snap dragon like. They are about 0.8 in. (20 mm) wide and are held above the water in groups of 3-14 flowers on stalks.


Where can I view images of HeliotropiumamplexicauleL.?


Is this plant invasive to the United States?


Is ArtemisiastellerianaBess. native to the United States?


What is the growth habit of spiny sowthistle?


Is RubusbifronsVest ex Tratt. native to the United States?


What is the common name of Rhodotyposscandens(Thunb.) Makino?


Describe the fruit of showy fly honeysuckle, bell's honeysuckle?

The spherical fruits are red and in pairs. The berries are eaten and the seeds distributed by birds and other wildlife.


Fruit are 0.2 in. (5 mm) wide, often hairy and bristly clinging to clothes and animal hair. Each fruit contains a single brown seed.


What is the U.S. Department of Agriculture (USDA) plant symbol for slender false garlic?


Describe the flowers of LotuscorniculatusL.?

Flowers develop in clusters of 2-8 on a long peduncle (stalk).


What is the scientific name of indian shot?


What is the U.S. Department of Agriculture (USDA) plant symbol for white willow?


What is the invasive/noxious status of parrotfeather and where is it classified as such?

Category 1 (Alabama), Class C (Alabama), Invasive (North Carolina), Potentially Invasive, Prohibited (Connecticut), Prohibited (New York), Prohibited (Wisconsin), Regulated (Minnesota), Watch List, Prohibited (Michigan)


Describe the flowers of brazilian vervain?

V. incomptahas small lavender to purple flowers. Each flower has five petals and is borne in compact slender terminal fascicles within hairy sepals and bracts.V. incomptablooms all summer until the first frost.


Is panama crowngrass native to the United States?


Where can I view images of smooth bedstraw?


What is the common name of PhoenixdactyliferaL.?


What is the scientific name of barbwire russian-thistle?


Where can I view images of RosalucieaeFranch. & Rochebr. ex Crép.?


What is the U.S. Department of Agriculture (USDA) plant symbol for heartleaf drymary?


Is Corispermumamericanumvar. rydbergiiMosyakin native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for longflowered veldtgrass?


Does african asparagus fern pose any ecological threat?

Asparagus asparagoidessmothers native vegetation with thick foliage and dense mats of roots. It can be found on cliffs, roadsides and ditches.


What is the U.S. Department of Agriculture (USDA) plant symbol for CynaracardunculusL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for sweetscented bedstraw?


Is this plant invasive to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Costusspeciosus(Koenig) Sm.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Setariapumila(Poir.) Roemer & J.A. Schultes?


Is pacific bentgrass native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for herb bennet?


What is the U.S. Department of Agriculture (USDA) plant symbol for sparrow vetch?


What is the U.S. Department of Agriculture (USDA) plant symbol for PhalarisaquaticaL.?


What is the common name of Pseudosasajaponica(Sieb. & Zucc. ex Steud.) Makino ex Nakai?


What is the U.S. Department of Agriculture (USDA) plant symbol for Myriophyllumspp.?


Where can I view images of white horehound?


Describe the appearance of uruguayan vervain?

Verbena montevidensis, Seashore vervain is a rapid growing, erect, and clump forming perennial herb. The 3-6 ft. (0.9-1.8 m) tall stems are slender, rough and square. Upright stems branch widely off the central stem.V. montevidensismay survive as an annual in colder climates as it readily self-seeds.


What is the growth habit of small philippine acacia?


What is the U.S. Department of Agriculture (USDA) plant symbol for RobiniahispidaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for european privet?


What is the scientific name of sowthistle?


Where can I view images of LoliumperenneL.?


Flowering occurs from April to June, when panicles of white to cream flowers develop in terminal and upper axillary clusters. Pollen can cause an allergic reaction in some people.


What is the growth habit of VitexrotundifoliaL. f.?


What is the U.S. Department of Agriculture (USDA) plant symbol for sapodilla?


What is the common name of AdenantherapavoninaL?


Where can I view images of crested floating heart?


Is CatalpabignonioidesWalt. native to the United States?


Is Euphorbiaesulavar. esulaL. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for himalayan blackberry?


Where can I view images of AcerpalmatumThunb.?


What is the U.S. Department of Agriculture (USDA) plant symbol for big chickweed?


Is Echinochloacrus-galli(L.) Beauv native to the United States?


Where can I view images of RanunculusacrisL.?


Describe the fruit of cheatgrass, downy brome?

The seeds can germinate in the fall or in the spring; fall germination is generally more common.B. tectorumhas a fibrous root system is finely divided. When a seed germinates in the fall, the developing root system is able to expand over the winter, giving the plant an increased ability to exploit available water and nutrients in the spring.


Describe the fruit of ElaeagnusangustifoliaL.?

The fruit are 0.4 in. (1 cm) long, are yellow and almost completely covered by densely silver scales. The fruit contain one large seed that can be up to 0.4 in. (1 cm) long within.


What is the scientific name of amur privet?


What is the U.S. Department of Agriculture (USDA) plant symbol for IpomoeaalbaL.?


What is the growth habit of Tibouchinaherbacea(DC.) Cogn.?


Describe the foliage of AbrusprecatoriusL.?

Alternate compound leaves, 2-5 in. (5-13 cm) long, with 5 to 15 pairs of oblong leaflets. A key characteristic in identifyingAbrus precatoriusis the lack of a terminal leaflet on the compound leaves.


What is the growth habit of TrifoliumpratenseL.?


Describe the flowers of LysimachianummulariaL.?

This plant often does not flower at all. But when it does the flowers are yellow with small dark red spots. The flowers arise from the leaf axils and have pedicels about 0.25-1.5 in (0.6-3.8 cm) long. It blooms from June to August.


Describe the flowers of SpartinaanglicaC.E. Hubbard?

Inflorescence is 4.7-15.7 in. (12-40 cm) long with 2-12 spikes that are 5.5-8.3 in. (14-21 cm) long. Flowers are colorless. Flowering periods vary based on the different climates of the plant’s location.


What is the U.S. Department of Agriculture (USDA) plant symbol for VeronicafiliformisSm.?


Where can I view images of green foxtail?


Where can I view images of tarweed cuphea?


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


Where can I view images of field bindweed?


What is the common name of GeraniumdissectumL.?


What is the common name of Cinnamomumcamphora(L.) J. Presl?


Is GarnotiastrictaBrongn. native to the United States?


Is red brome native to the United States?


What is the scientific name of corkystemmed passionflower?


Is buckhorn plantain native to the United States?


Describe the foliage of EchiumvulgareL.?

Rosette leaves are oblong to lanceolate, 2-6 in. (5.1-15.2 cm) long and up to 1.25 in. (3.2 cm) wide. Rosette leaves narrow to a short petiole. Leaves that occur on the flowering stem are also oblong to lanceolate but do not have petioles. All leaves have white 'speckles' that give the leaves a dimpled appearance and also have relatively long white hairs.


Is sweet vernalgrass native to the United States?


Is cluster mallow native to the United States?


Is CynosurusechinatusL. native to the United States?


What is the growth habit of ViburnumdilatatumThunb.?


Does RicinuscommunisL. pose any ecological threat?

Ricinus communiscan be found in disturbed areas such as in fields, pastures and along roadsides and railroads. It is native to Asia. Be aware, this plant is extremely toxic to humans and consuming just a few seeds can be fatal.


What is the common name of PsidiumcattleyanumSabine?


What is the common name of ElaeagnuspungensThunb.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Callicarpadichotoma(Lour.) K. Koch?


Describe the flowers of glossy buckthorn?

The flowers are inconspicuous, pale greenish-yellow to yellow in color and occur in clusters in the leaf axis. Flowering occurs from May through September.


Does mediterranean clone of caulerpa pose any ecological threat?

The non-invasive form ofCaulerpa taxifoliais native to the Caribbean, Indo-Pacific and the Red Sea. A clone of the species was cultured for display at the Stuttgart Aquarium in Germany and provided to aquariums in France and Monaco. It either escaped from or was released from an aquarium into the Mediterranean Sea in 1984 where it spread rapidly, densely blanketing thousands of acres of underwater surfaces. Populations of the invasive Mediterranean aquarium strain were discovered in 2000 in California and threaten native kelp and eelgrass meadows. The invasive clone is genetically distinct from the native (DNA tests are necessary to distinguish them) and it tolerates cooler water, grows more rapidly, and grows at greater depth than the native species. Once established, this alga becomes the dominant species, altering native algal and marine animal communities. Infestations negatively affect tourism, commercial fishing, and recreational activities. The invasive clone was designated in 1999 as a prohibited species under the Federal Noxious Weed Act. Its current distribution includes Croatia, France, Italy, Monaco, Spain (Mediterranean Sea, Adriatic Sea), Australia and the United States.


Describe the fruit of ElaeagnuspungensThunb.?

Plants rarely fruit, but fruit are small, red and dotted with small brown scales.


What is the scientific name of montbretia?

Crocosmiax crocosmiiflora(V. Lemoine) N.E. Br. [aurea × pottsii]


Is this plant invasive to the United States?


Is siberian crabapple native to the United States?


Is Nephrolepisbrownii(Desv.) Hovenkamp & Miyam. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Tetragoniatetragonioides(Pallas) Kuntze?


Is ivy gourd native to the United States?


Describe the fruit of CyperusrotundusL.?


Is garden loosestrife native to the United States?


Is bengal trumpet native to the United States?


What is the scientific name of basketplant?


Is PopulusgrandidentataMichx. native to the United States?


What is the growth habit of kenilworth ivy?


Is MalvaparvifloraL. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for NardusstrictaL.?


Describe the flowers of evergreen clematis?

Flowers are white in color and are arranged in clusters in the upper leaf axils. The blooming period occurs in summer.


Does spiny plumeless thistle pose any ecological threat?

Carduus acanthoidesinfests open, disturbed areas such as pastures, roadsides, and railroad right-of-ways. It can form thick stands that reduce the forage potential of pastures and suppress the growth of desirable vegetation.


What is the growth habit of LactucacanadensisL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for NicotianaglaucaGraham?


What is the growth habit of ScaevolataccadaVahl?


What is the U.S. Department of Agriculture (USDA) plant symbol for TragopogonporrifoliusL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Fraxinusuhdei(Wenzig) Lingelsh?


What is the U.S. Department of Agriculture (USDA) plant symbol for common vetch?


What is the scientific name of perilla mint?


Where can I view images of SalixfragilisL.?


Is HemerocallislilioasphodelusL. native to the United States?


Describe the appearance of japanese barberry?

Berberis thunbergiiis a small deciduous shrub from 2-8 ft. (0.6-2.4 m) tall. The thin, grooved branches have thin, straight spines.Berberis thunbergiiis very shade-tolerant and can form dense stands which shade out and displace native species.


Is this plant invasive to the United States?


Describe the foliage of european black alder?

The leaves are simple, alternate and doubly-toothed.


Where can I view images of colonial bentgrass?


Where can I view images of VeronicabilobaL.?


Is EragrostiscumingiiSteud. native to the United States?


Where can I view images of rabbitfoot polypogon?


What is the U.S. Department of Agriculture (USDA) plant symbol for bahiagrass?


Is tansy ragwort native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Rorippasylvestris(L.) Bess.?


What is the growth habit of Ligustrumobtusifoliumvar. obtusifoliumSieb.& Zucc.?


What is the U.S. Department of Agriculture (USDA) plant symbol for spiny plumeless thistle?


What is the growth habit of ragweed parthenium?


Describe the foliage of AlliumvinealeL.?

Leaves are tubular, hollow, slender, and have a waxy appearance.


What is the growth habit of wild parsnip?


What is the growth habit of Cicutadouglasii(DC.) Coult. & Rose?


Where can I view images of NandinadomesticaThunb.?


Describe the fruit of Abutilongrandifolium(Willd.) Sweet?

The schizocarp is a dull black and broadly urceolate-truncate. It is about 0.4-0.6 in. (11-14 mm) long. The mericarps are usually 10, thin-walled and somewhat inflated. They are short-beaked dorso-ventrally. There are usually 3-6 seeds per mericarp. They are blackish and reniform. Seeds are about 0.08-0.12 in. (2-3 mm) long and sparsely pubescent.


What is the common name of Pithecellobiumdulce(Roxb.) Benth.?


What is the scientific name of rose clover?


Describe the flowers of Eragrostiscurvula(Schrad.) Nees?

Flower spikelets are elongated, flattened, and have 4 to 13 small flowers. Flowering occurs during early summer and continues through fall.


What is the common name of Falcatariamoluccana(Miquel) Barneby & Grimes?


Is Landoltiapunctata(G.F.W. Mey.) D.H. Les & D.J. Crawford native to the United States?


Is RanunculusrepensL. native to the United States?


What is the common name of SisymbriumorientaleL.?


Is this plant invasive to the United States?


Describe the fruit of Torilisjaponica(Houtt.) DC.?

The fruit are small, cylindrical and covered with hooked hairs that attach to clothing or fur.


What is the U.S. Department of Agriculture (USDA) plant symbol for LythrumsalicariaL.?


Where can I view images of CarexkobomugiOhwi?


Is BoerhaviacoccineaP. mill. native to the United States?


What is the common name of Watsoniaborbonica(Pourret) Goldblatt?


Stem striate. Leaves 3-4 pinnate; segments filiform, up to 1.6 in. (4 cm) long; leaf bases sheathing. Rays 5-30, 0.39-2.4 in. (1-6 cm) long.


Is sydney golden wattle native to the United States?


What is the invasive/noxious status of dames rocket and where is it classified as such?

Invasive, Prohibited (Connecticut), Restricted (Wisconsin)


Is BromusarvensisL. native to the United States?


Is Sesbaniavesicaria(Jacq.) Ell. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Hygrophilapolysperma(Roxb.) T. Anders.?


What is the scientific name of winter-flowering cherry?


What is the growth habit of yellow bedstraw?


What is the U.S. Department of Agriculture (USDA) plant symbol for smutgrass?


What is the U.S. Department of Agriculture (USDA) plant symbol for CyperushaspanL.?


Is NardusstrictaL. native to the United States?


Is SalixfragilisL. native to the United States?


What is the scientific name of himalayan balsam?


What is the scientific name of slenderflower thistle?


Describe the flowers of round leaf bittersweet?

Small, inconspicuous, axillary, greenish-white flowers bloom from May to early June. Oriental bittersweet closely resembles American bittersweet (Celastrus scandens). The main difference:Celastrus scandenshas flowers and fruits at the ends of branches;Celastrus orbiculatushas flowers in the axils of the leaves.


What is the U.S. Department of Agriculture (USDA) plant symbol for SalviasclareaL.?


What is the invasive/noxious status of pale yellow iris, yellow flag iris and where is it classified as such?

Invasive (Delaware), Invasive (North Carolina), Invasive, Prohibited (Connecticut), Prohibited (New York), Regulated (Minnesota), Restricted (Wisconsin), Tier 1 (Maryland)


Is this plant invasive to the United States?

The following species have been reported to be invasive in natural areas in the United States. Species native to the United States are included when they are invasive in areas well outside their known natural ranges, as a result of human activities.


What is the U.S. Department of Agriculture (USDA) plant symbol for Lepidiumdraba(L.) Desv?


What is the U.S. Department of Agriculture (USDA) plant symbol for common goldenthistle?


What is the growth habit of mother of thyme?


Describe the appearance of common tansy?

Tanacetum vulgareis an aromatic, perennial herbaceous plant that can reach up to 5 ft. (1.5 m) in height.


What is the common name of HordeummurinumL.?


Fruits are small round pink-red capsules that split open to expose seeds with red-orange arils.


Does common barberry pose any ecological threat?

Berberis vulgarisis shade tolerant which allows it to easily invade woodlands. It is also an alternate host for wheat rust (Puccinia graminis) which makes the control and removal of this invasive shrub of primary importance. It was introduced to America during the 17th century. Fruit ofBerberis vulgariswas used to make jam, the flowers for dye and the thorny shrub provided effective livestock fencing. It is native to central and southern Europe.


What is the U.S. Department of Agriculture (USDA) plant symbol for ThunbergiaalataBojer ex Sims?


What is the U.S. Department of Agriculture (USDA) plant symbol for LoniceramorrowiiGray?


Does water lettuce pose any ecological threat?

Pistia stratiotes, forms extensive mats that can block navigational channels, impede water flow in irrigation and flood control canals, and disrupt submersed animal and plant communities (Sculthorpe, 1967; Attionu, 1976; Bruner, 1982; Sharma, 1984).Pistia stratiotesis among the world’s worst weeds (Holm et al., 1977). It has been placed on prohibited plant lists in Florida (FDEP, 2000), Louisiana (LDWF, 2000), Mississippi (MDAC, 1997), and Texas (TPWD, 2000), and is considered a noxious species (an invasive species of concern, but not regulated) in South Carolina (SCDNR, 2000) and Delaware (DDFW, 2000).


The small deciduous leaves, 3-5 in (7.6-12.7 cm) long, with 3-7 pairs of rounded lobes, and extremely short petioles. They remain deep green long into autumn before turning brown and then persisting on the tree well into winter.


Describe the flowers of LamiumamplexicauleL.?

Flowers are about 1 1/2 inches long, purple, and have hairy bracts.


Describe the appearance of CentaureaibericaTrev. ex Spreng?

Centaurea ibericais an annual plant that grows 1-6 ft. (0.3-1.8 m) tall. It closely resembles purple starthistle and it is native to southern Europe.


What is the scientific name of amphibious yellowcress?


Is LeonuruscardiacaL. native to the United States?


What is the growth habit of fountaingrass?


Where can I view images of Setariapumilassp. pumila(Poir.) Roem. & Schult.?


What is the growth habit of Dactylisglomeratassp. glomerataL.?


Where can I view images of tawny daylily?


Does Stellariapallida(Dumort.) Crépin pose any ecological threat?

Stellaria pallidaoccurs in shady, moist locations and can commonly threaten habitats on rocky seeps.


Describe the flowers of ElaeagnuspungensThunb.?

The axillary clusters of small, sweet-smelling, white to brown flowers develop in the fall.


Is this plant invasive to the United States?


Describe the flowers of common st. johnswort?

Flowering occurs from June to September, when bright yellow flowers develop at the tips of the stems. Flowers have five petals and many stamens. Petals typically have black glands along the margins.


Is redflower ragleaf native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for radish?


What is the U.S. Department of Agriculture (USDA) plant symbol for CenchrusechinatusL.?


Is green foxtail native to the United States?


What is the growth habit of korean lespedeza?


What is the invasive/noxious status of houndstongue and where is it classified as such?


What is the scientific name of common duckweed?


What is the scientific name of bay biscayne creeping-oxeye?


What is the U.S. Department of Agriculture (USDA) plant symbol for SpathoglottisplicataBlume?


Describe the flowers of EucalyptusglobulusLabill.?

Solitary white flowers with many stamens, arise from the axils on flattened stalks. They range from 1.6-2.2 in. (4-5.5 cm) wide. Sepals and petals are united to form a warty lid which is present on the bud and drops off at flowering. Flowers from December to May.


What is the U.S. Department of Agriculture (USDA) plant symbol for linden viburnum?


Describe the flowers of carolina fanwort, fanwort?

The flowers are long stemmed 1.2-4 in. (3-10 cm). They are most often white with yellow at the center, but may occasionally be pink or purplish. The sepals and petals are about 0.5 in. (1.25 cm) across. The petals are auriculate at the their bases, and obovate in shape.


What is the common name of ScaevolataccadaVahl?


What is the scientific name of trumpet creeper?


Hygrophila polyspermahas tiny white flowers that bloom on terminal spikes from September to November.


What is the U.S. Department of Agriculture (USDA) plant symbol for venice mallow?