Does fragrant waterlily pose any ecological threat?

Nymphaea odoratais found in ponds, lakes, and streams. It is native to all US states except Alaska, Hawaii, North Dakota, and Wyoming.Nymphaea odoratais considered an invasive exotic in California and Washington. It is becoming rare in some of its native range. Connecticut listsNymphaea odorataas a species of special concern.


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


What is the scientific name of river sheoak?


Is palay rubbervine 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.


What is the common name of DigitalislanataEhrh.?


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


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


Where can I view images of Thespesiapopulnea(L.) Soland. ex Correa?


Leaves are alternate with 5–9 leaflets about 0.8-2 in (2–5 cm) long by 0.6-1.2 in (1.5–3 cm) wide. Leaflets are widely elliptical, acute, with broadly cuneate or rounded base. Leaf tops are leathery, dark green, conspicuously bullate or rugose, and rather shiny. Back of leaves are green-grey, hairy with netlike veins. Leaf margin bluntly and simply crenate-serrate, involute, edge of teeth often deflexed. Petiole and rachis are hairy, with many prickles. Stipules are pale green, hairy, 1 x 0.4-0.6 in (2.5 × 1–1.5 cm), divergent, the free part broadly ovate or deltoid.


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


Is trumpet creeper native to the United States?


Describe the flowers of brazilian waterweed, brazilian elodea?

The flowers, which bloom above the surface of the water, are white with three petals.


Where can I view images of bristly locust?


Does HypericumperforatumL. pose any ecological threat?

Hypericum perforatumhas been used to treat mild depression, but has been shown to cause hyper photosensitivity. Plants inhabit rangelands, pastures, roadsides and forest clearings. St Johnswort is native to Europe.Hypericum perforatummay be poisonous to cattle in large doses.


Is PinuscoulteriD. Don native to the United States?


Where can I view images of Polypogonmonspeliensis(L.) Desf.?


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


What is the growth habit of Anthriscussylvestris(L.) Hoffmann?


What is the common name of SolanumpseudocapsicumL.?


Describe the flowers of SalviaaethiopisL.?

Flowering stems are highly branched and develop in June to August. The flowers are yellow to whitish and bilabiate (two lipped corolla).


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


Is this plant invasive to the United States?


Does MyriophyllumheterophyllumMichx. pose any ecological threat?

Myriophyllum heterophyllumis native to the southern United States, but is considered invasive in much of the northeast. This species is listed as endangered or threatened in three states (Kentucky, Ohio, and Pennsylvania).


Does small carpetgrass, joint-head grass pose any ecological threat?

Arthraxon hispidusis an annual grass that was introduced into the United States, either accidentally or by immigrants, from Japan and eastern Asia.Arthraxon hispidusinhabits wet areas such as stream banks, flood plains and shorelines.


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


What is the growth habit of smallflower umbrella sedge?


Does Rhaponticumrepens(L.) Hidalgo pose any ecological threat?

Rhaponticum repensis native to Eurasia and was introduced into the United States in the early 1900’s. This species can cause chewing disease in horses.


What is the growth habit of Arthraxonhispidus(Thunb.) Makino?


Is Macroptiliumlathyroides(L.) Urb. native to the United States?


What is the growth habit of yellow foxtail?


Where can I view images of weeping lantana?


What is the scientific name of yellow rocket?


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


Does HumulusjaponicusSiebold & Zucc. 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.


What is the growth habit of MelinisminutifloraBeauv.?


Is uruguayan pampas grass native to the United States?


Where can I view images of floating bladderwort?


Lamium amplexicaulecan be found in thrives in cool, moist areas and occurs in yards, parks, roadsides, fallow fields, winter grain crops, pastures, and turf grass. It can be highly competitive in newly seeded areas.Lamium amplexicaulehas been found to be an overwintering host for soybean cyst nematode. it is also an alternative host for corn earworm.


Is SedumsarmentosumBunge native to the United States?


What is the common name of AdiantumhispidulumSw.?


Describe the appearance of Scheffleraactinophylla(Endl.) H.A.T. Harms?

Schefflera actinophyllacan grow to 40 ft. (12.2 m) tall. Stems can be single or multi-stemmed.


Is common pearlbrush native to the United States?


What is the growth habit of chocolate vine?


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


What is the scientific name of cheatgrass, downy brome?


Is this plant invasive to the United States?


What is the growth habit of CyperusproliferLam?


The yellow, button-like flowers develop in dense flat-topped clusters at the apex of the plant.T. vulgareflowers bloom from August to October.


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


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


Describe the flowers of russian thistle?

Flowering occurs from midsummer to fall, when small, pink to greenish flowers develop from the leaf axils. Each flower is subtended by 3, spine-tipped leaves.


Describe the appearance of AmbrosiaartemisiifoliaL.?

Ambrosia artemisiifoliais an annual. It blooms in the late summer and it can grow up to 4 ft. (1.2 m) tall.


Does porcelain-berry pose any ecological threat?

Ampelopsis glandulosa var. brevipedunculataprefers moist, rich soils and can thrive in a wide range of light availability. It invades streambanks, pond margins, forest edges and other disturbed areas. The thick mats formed by this climbing vine can cover and shade out native shrubs and young trees. It spreads very quickly since birds and mammals eat and thus disperse the seeds.Ampelopsis glandulosa var. brevipedunculatais native to Japan and northern China and was first introduced into the United States in 1870 as an ornamental and landscaping plant.


Describe the fruit of CentaureanigrescensWilld?

Fruit are gray to light brown, 0.09-0.11 in. (2.5-3 mm) long, and finely hairy. The seeds are small, 0.02-0.04 in. (0.5-1 mm) long, and darkly colored.


Is Bassiascoparia(L.) A.J. Scott native to the United States?


What is the common name of LotuscorniculatusL.?


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


Where can I view images of Cunninghamialanceolata(Lamb.) Hook.?


What is the scientific name of slender false garlic?


Where can I view images of DrabavernaL.?


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


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


What is the common name of CarduusacanthoidesL.?


Is this plant invasive to the United States?


What is the scientific name of brassbuttons?


What is the scientific name of edible fig?


What is the scientific name of wayfaringtree?


Cupaniopsis anacardioidesAn evergreen tree that can grow to 32.8 ft. (10 m) tall.


Where can I view images of ValerianaofficinalisL.?


What is the scientific name of nightshade?


What is the scientific name of florida betony?


What is the common name of ViolaodorataL.?


Is Sporobolusindicusvar. pyramidalis(P. Beauv.) Veldkamp native to the United States?


What is the growth habit of Gamochaetapurpurea(L.) Cabrera?


Is HypochaerisradicataL. native to the United States?


Where can I view images of MalvaneglectaWallr.?


Is Cotoneasterspp.Medik. native to the United States?


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

Category 1 (Alabama), Invasive (North Carolina), Noxious (United States), Prohibited (New York)


What is the scientific name of brown knapweed?


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


What is the growth habit of kikuyugrass?


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


Does swainsonpea pose any ecological threat?

Sphaerophysa salsulais native to Asia and invades roadsides, right-of-ways, ditches, and other disturbed sites.


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 flixweed native to the United States?


What is the common name of Taeniatherumcaput-medusae(L.) Nevski?


What is the common name of FestucaarundinaceaSchreb.?


What is the growth habit of common vetch?


Is Prunusavium(L.) L. native to the United States?


Describe the foliage of yellow bedstraw?

Leaves are whorled, very narrow, up to 1.5 in. (3.8 cm) long, covered in short hairs, pointed, and found in groups of 8 to 12 leaves.


What is the growth habit of juniper berry?


Is Asystasiagangetica(L.) T. Anders native to the United States?


Describe the fruit of DipsacuslaciniatusL.?

A single plant can produce up to 2,000 seeds and can remain viable in the soil for at least two years.


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


What is the scientific name of shameplant?

Mimosapudicavar. unijuga(Duchass. & Walp.) Griseb.


Is evergreen clematis native to the United States?


Seeds are small and black. Prolific seed production increases the spread of this plant, as a single plant can produce up to half a million seeds.


What is the scientific name of lemon balm?


What is the common name of SpermacoceverticillataL.?


What is the growth habit of VeronicabilobaL.?


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


Is this plant invasive to the United States?


Describe the fruit of RobiniapseudoacaciaL.?

The flowers give way to a smooth, thin seed pod that is 2-4 in. (5.1-10.2 cm) in length.


Does coltsfoot pose any ecological threat?

Tussilago farfarainvades moist, open, disturbed areas such as stream banks, ditches and fields. It readily spreads both by seed and rhizomes, allowing it to form large colonies, which can displace native species.Tussilago farfarais native to Europe and was probably introduced into the United States by early settlers for medicinal purposes.


Describe the fruit of CardamineimpatiensL.?

The slender siliques (a type of fruit) ripen from May to September. They are 0.6-0.8 in. (1.5-2 cm) long and there are 10-24 seeds in each of them which shoot out from the dry fruits.


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

Invasive (Connecticut), Invasive (Delaware), Invasive (IPC) (Missouri), Invasive (North Carolina), Regulated (New York), Restricted (Wisconsin), Tier 2 (Maryland)


What is the scientific name of arrowleaf elephant's ear?


Describe the appearance of DelaireaodorataLem?

Delairea odoratais a perennial vine that climbs up trees and will reach heights of 16.4 ft. (5 m) in suitable climates.


Describe the flowers of DioscoreaalataL.?


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


What is the common name of Cruciatapedemontana(Bellardi) Ehrend.?


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


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


Where can I view images of european aspen?


Is SalviniamolestaD. S. Mitchell native to the United States?


Where can I view images of Erechtiteshieraciifolius(L.) Raf. ex DC.?


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.


Is Citrulluscolocynthis(L.) Schrad. native to the United States?


Describe the fruit of LespedezabicolorTurcz.?

The fruit are flat, indehiscent pods and contain one seed that measure up to 0.31 in. (8 mm) long.


Is ThymuspraecoxOpiz native to the United States?


What is the common name of SolanumelaeagnifoliumCavanaugh?


What is the growth habit of Montanoahibiscifolia(Benth.) Standl.?


What is the growth habit of intermediate wheatgrass?


Is GaliumverumL. native to the United States?


What is the scientific name of boneseed?


Is Alliariapetiolata(Bieb.) Cavara & Grande native to the United States?


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


Describe the flowers of marsh dayflower?

From September to November small, pink, 3-petaled flowers occur singly or in small clusters at the apex of the stems and in the leaf axils.


Does saltcedar pose any ecological threat?

T.ramosissimainvades stream banks, sandbars, lake margins, wetlands, moist rangelands, and saline environments. It can crowd out native riparian species, diminish early successional habitat, and reduce water tables and interferes with hydrologic process.


Is this plant invasive to the United States?


What is the common name of MyosotislatifoliaPoir.?


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


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


What is the growth habit of slender russian thistle?


Where can I view images of Bassiascoparia(L.) A.J. Scott?


Describe the appearance of seaside rose?

Rosa rugosais a deciduous, multi-stemmed shrub. Stems are erect to arching, to 5 ft (1.5 m), often much branched, tomentose when young and densely prickly. Prickles from large to small are slender and straight. Larger prickles near the base may be tomentose and are usually glabrous at the point. It sends out woody rhizomes which can expand or create infestations.


What is the growth habit of CelastrusorbiculatusThunb.?


What is the growth habit of english catchfly?


Is european water chestnut native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Sonchusarvensisssp. uliginosus(M. Bieb.) Nyman?


Is roadside pennycress native to the United States?


Is Viciavillosassp. villosaRoth native to the United States?


Is ricegrass paspalum native to the United States?


Where can I view images of Cortaderiaselloana(Schult. & Schult. f.) Asch. & Graebn.?


What is the scientific name of brazilian vervain?


What is the scientific name of thymeleaf speedwell?


Is this plant invasive to the United States?


Where can I view images of BromusjaponicusThunb.?


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


What is the growth habit of moist sowthistle?


Where can I view images of japanese black pine?


Does flowering rush pose any ecological threat?

This plant spreads mostly from rhizomes and occurs in wet areas with muddy soil, such as freshwater marshlands, lakes and streams.Butomus umbellatuscan displace native riparian vegetation. It can form dense stands which are an obstacle to boat traffic. It is tolerant of a wide range of temperatures which gives it the potential to invade across much of the United States.Butomus umbellatusis native to Eurasia and was first found in Canada in the late 1800’s and in the United States in the early 1900’s.


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

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


Describe the appearance of ConiummaculatumL.?

Conium maculatum, Poison-Hemlock is a biennial herbaceous plant in the carrot family (Apiaceae) that grows 3-8 ft. (0.9-2.4 m) tall. Stems are stout, hollow, ridged, and purple-spotted.C. maculatumhas a thick, white taproot that may easily be mistaken for wild parsnips. All plant parts are poisonous; however, the seeds contain the highest concentration of poison.C. maculatumis native to Africa, temperate and tropical Asia and Europe.


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


What is the growth habit of Persicariaperfoliata(L.) H. Gross?


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


Describe the fruit of TribulusterrestrisL.?

Fruit are circular, spiny burs that split into 5 sections. Burs can cause injury to bicycle tires, bare feet, and even small truck tires.


What is the scientific name of holly osmanthus?

Osmanthusheterophyllus(G. Don) P.S. Green


What is the growth habit of RaphanusraphanistrumL.?


Is CordiacollococcaL. native to the United States?


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


What is the growth habit of RosacaninaL.?


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 invasive/noxious status of common water hyacinth and where is it classified as such?

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


Does Epipactishelleborine(L.) Crantz pose any ecological threat?

Epipactis helleborineprefers disturbed areas such as along foot trails and roadsides within woodlands.


What is the common name of CasuarinaequisetifoliaL.?


What is the common name of LamiumamplexicauleL.?


What is the common name of Vincetoxicumspp.L.?


Is LoniceraetruscaSanti native to the United States?


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


What is the scientific name of big quakinggrass?


Describe the foliage of shortpod mustard?

Basal leaves are 1.6-8.7 in. (4-22 cm) long and ovate to lanceolate. Cauline leaves are oblong to lanceolate, and sessile.


Does Lygodiummicrophyllum(Cav.) R. Br. pose any ecological threat?

Lygodium microphyllumis a serious invader of swamps, glades, and hammocks. It can form dense mats that smother understory vegetation, shrubs and trees. This plant also increases fire risks. Thick mats of dead fronds that grow into trees act as fire ladders, bringing the fires into the tree canopies. It is native to Africa, Australia and Southeast Asia and was first found naturalized in the United States in 1965.


Is PrunuscerasiferaEhrh. native to the United States?


Where can I view images of ravennagrass?


Describe the foliage of european frog-bit?

The leaves of the plant are round, and heart shaped, (the size of a Canadian two-dollar coin) with veins coming off the mid-vein that arch broadly following the shape of the leaf. The undersides of the leaves are dark purplish-red and have a spongy coating, which helps the plant float on top of the water.


What is the common name of Chenopodiumalbumvar. albumL.?


What is the growth habit of thunberg's geranium?


What is the growth habit of CornussericeaL.?


Describe the fruit of Nymphoidescristata(Roxb.) O. Ktze.?

The fruit is an oblong capsule, with smooth, rounded seeds.


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


What is the common name of Hippeastrumpuniceum(Lam.) Kuntze?


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


Is this plant invasive to the United States?


Describe the fruit of Phyllostachysnigra(Lodd.) Munro?

This plant mainly reproduces from rhizomes (underground stems).


Trapa natanshas small, four-petaled flowers that bloom from July to frost.


The toxic fruits are reddish green, round and 2-3 in. (5.1-7.96 cm) in diameter.


What is the common name of BuddlejamadagascariensisLam.?


What is the scientific name of monarch fern?


Describe the fruit of bluebuttons, field scabious?

One plant can produce up to 2000 seeds which may remain viable in the soil for many years. The fruit are four angled hairy achenes from 0.2-0.24 in (5-6 mm) long.


Describe the flowers of PrunuslaurocerasusL.?

Flowers are found in clusters of small, cream to white, fragrant, cup-shaped flowers with 5 petals and yellow stamens. The blooming period occurs from April to May.


Describe the appearance of VerbascumthapsusL.?

Verbascum thapsusis a biennial forb native to Eurasia and Africa. Plants are unbranched and can grow to more than 6.6 ft. (2 m) tall.


What is the growth habit of Sorghumbicolorssp. drummondii(Nees ex Steud.) de Wet & Harlan?


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


Is western yarrow native to the United States?


Describe the appearance of PotentillarectaL.?

Potentilla rectais a perennial herb that can grow to 19.7 in. (50 cm) tall. It is native to Africa, temperate Asia and Europe.


What is the growth habit of bohemian knotweed, hybrid japanese knotweed?


Does RaphanussativusL. pose any ecological threat?

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


Describe the foliage of Persicarialongiseta(Bruijn) Kitagawa?

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 scientific name of surinam cherry?


Is ponderosa pine native to the United States?


What is the common name of MarsileaminutaL.?


Does canada thistle 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.


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


What is the growth habit of Sesbaniapunicea(Cav.) Benth.?


What is the growth habit of leporinum barley?


What is the growth habit of ArctiumminusBernh.?


What is the growth habit of marsh thistle?


What is the common name of ArtemisiastellerianaBess.?


Is coppery mesemb native to the United States?


Is Ptychospermaelegans(R. Br.) Blume native to the United States?


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


What is the common name of Sorghumbicolor(L.) Moench?


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


What is the growth habit of watermilfoil?


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.


Does burmareed pose any ecological threat?

Neyraudia reynaudianacan be distinguished from common reed by the hairy collar around the leaf sheath.Neyraudia reynaudianais native to South Asia and was introduced into the United States in 1916. It is extremely flammable and can produce flames up to 30 ft. (9 m) high.


Where can I view images of siberian elm?


Where can I view images of Erechtitesvalerianifolius(Spreng.) DC.?


What is the scientific name of primrose-willow?


Describe the appearance of Sorghumhalepense(L.) Pers.?

Sorghum halepenseis a tall (up to 8 ft. [2.4 m]), rhizomatous, perennial grass that invades open areas throughout the United States.


Describe the foliage of EuphorbiacyparissiasL.?

The leaves are small, up to 1 in. (2.5 cm) long. The leaves are numerous, alternate or whorled, bright green, and linear in shape.


Describe the foliage of QuercusacutissimaCarruthers?

The leaves are alternate, broadly lance-shaped, 4-7.5 in. (10.2-19 cm) long, up to 2.5 in. (6.4 cm) wide with bristly teeth along the margin.


What is the scientific name of squarrose knapweed?


What is the growth habit of OrnithogalumumbellatumL.?


Where can I view images of ThunbergiagrandifloraRoxb.?


Where can I view images of siberian peashrub?


Is EhrhartacalycinaSm. native to the United States?


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


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


Where can I view images of SalsolapaulseniiLitv.?


Is Leontodonsaxatilisssp. saxatilisL. native to the United States?


Is scots pine native to the United States?


What is the growth habit of NasturtiummicrophyllumBoenn. ex Rchb.?


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


Where can I view images of twolobe speedwell?


What is the growth habit of purpleosier willow?


What is the U.S. Department of Agriculture (USDA) plant symbol for Cytisusmultiflorus(L'Hér.) Sweet?


What is the scientific name of sewer vine?


Is this plant invasive to the United States?


Reproduces by seed which can be spread by wind, passing animals, humans, vehicles or equipment. It can re-sprout from woody root crown.


What is the scientific name of black nightshade?


Describe the fruit of Phragmitesaustralis(Cavanilles) Trinius ex Steudel?

The seeds are brown, light weight, and about 0.3 in. (8 mm) long. In the fall the plant turns brown, and the inflorescences persist throughout the winter.


Where can I view images of Leucaenaleucocephala(Lam.) de Wit?


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


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


Where can I view images of creeping liriope?


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


Where can I view images of kentucky bluegrass?


Describe the appearance of buttercup oxalis?

Oxalis pes-capraeis a small perennial herb in the Oxalidaceae (Oxalis family), native to the Cape Region of South Africa. Shoots ofO. pes-capraearise from a short vertical stem that is attached to a pale brown underground bulb. Each bulb (usually smaller than 1 in. [2.5 cm] in size) is capable of producing over 20 small whitish bulblets each year.


Hydrilla verticillatais a submersed, rooted aquatic plant that can grow in water up to depths of 20 ft. (6.1 m). Plants can survive in depths up to 40 ft. (12 m) in non-turbid water.


Fruit are small, red rose hips that remain on the plant throughout the winter. Birds and other wildlife eat the fruit and disperse the seeds.


What is the scientific name of wingleaf passionflower?


Is rose campion native to the United States?


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


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


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


Describe the fruit of RanunculusrepensL.?

Fruits are spherical achenes that measure 0.1 in. (2.5-3.5 mm) in diameter. These achenes have sharp, narrow margins and are tipped with a short, curved beak.


Where can I view images of white leadtree?


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


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


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


Describe the foliage of Hyacinthoideshispanica(Mill.) Rothm.?

Leaves are linear to lanceolate, strap-shaped, 7.9 to 19.7 in. (20-50 cm) x 0.4 to 1.4 in. (10-35 mm). Each plant usually has only 4 to 8 leaves.


Is IpomoeaalbaL. native to the United States?


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


What is the scientific name of annual ryegrass?


Is this plant invasive to the United States?


What is the growth habit of common ragweed?


What is the growth habit of malabar plum?


Does Linariadalmatica(L.) P. Mill. pose any ecological threat?

Linaria dalmaticaoccurs in fields, pastures, roadsides and rangelands. It is native to Europe and was introduced into North America, as an ornamental, in the late 1800s.


Where can I view images of english daisy?


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


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


Where can I view images of LathyruslatifoliusL.?


Does PhyllostachysaureosulcataMcClure pose any ecological threat?

Phyllostachys aureosulcataprefers full sun but can grow and spread under forest canopies. It is commonly found in suburban woodlands, around old home sites and along roads. It seems to spread most rapidly in moist soils. In riparian areas, rhizomes can be washed downsteam, starting new infestations.


Where can I view images of ArundodonaxL.?


What is the common name of Malephoracrocea(Jacq.) Schwant.?


Is Firmianasimplex(L.) W. Wight native to the United States?


What is the growth habit of HouttuyniacordataThunb.?


Describe the appearance of Wisteriasinensis(Sims) DC.?

Wisteria sinensisis a deciduous woody vine capable of growing to a height of 40 ft. (12.2 m). Stems can be up to 10 in. (25.4 cm) in diameter with smooth, gray-brown bark. When looking down on the vine, it twines in a counter clockwise direction around the host.


What is the common name of AtriplexsemibaccataR. Br.?


Where can I view images of Phelipancheaegyptiaca(Pers.) Pomel?


What is the growth habit of simpleleaf chastetree?


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


Imperata cylindricais a perennial, colony-forming grass which can grow up to 6 ft. (1.8 m) tall.


What is the common name of Vincetoxicumnigrum(L.) Moench?


Is SalviapratensisL. native to the United States?


Describe the fruit of RicinuscommunisL.?

Capsules are red, green or purple in color, covered in dense sharp spines, 0.6 in. (1.5 cm) in diameter, and contain 3 seeds. Seeds are mottled in color with black and copper colors.


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


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 common name of Axonopuscompressus(Sw.) Beauv.?


Describe the appearance of AbrusprecatoriusL.?

Abrus precatoriusis a small, perennial, high climbing vine.


Is OenotheraglaziovianaMicheli native to the United States?


Where can I view images of Asparagusasparagoides(L.) Druce?


Describe the appearance of BromussecalinusL.?

Bromus secalinusis an annual grass that can grow from 17.7-39.4 in (45-100 cm) tall. It is native to Africa, temperate Asia, and parts of Europe. It has been introduced to Australia, North America, Hawaii, and South America.


What is the U.S. Department of Agriculture (USDA) plant symbol for narrow-leaved iceplant?


Describe the fruit of RubusphoenicolasiusMaxim.?

The fruit (clusters of drupelets) are juicy and bright, shiny red in color. They are about 0.4 in. (1 cm) thick and may have fine hairs. They ripen in June to July.


Describe the flowers of hairy willowherb?

Solitary flowers are held on stems arising from the upper leaf axils. Stems can be floating or lying on the ground. The flowers are showy with bright pink to dark purple notched petals with white centers.


Is peruvian groundcherry native to the United States?


Slender, cylindrical fruit up to 2 in. (5 cm) long. Splitting when dry to release three to five seeds.


What is the scientific name of incised fumewort?


What is the scientific name of ceara rubbertree?


What is the U.S. Department of Agriculture (USDA) plant symbol for Ipomoeacarneassp. fistulosa(Mart. ex Choisy) D. Austin?


What is the common name of KalanchoedelagoensisEcklon & Zeyh.?


Is lesser swinecress native to the United States?


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


What is the growth habit of porcelain-berry?


What is the invasive/noxious status of crested floating heart and where is it classified as such?


Where can I view images of cranberry viburnum, european highbush cranberry?


Is AmbrosiatrifidaL. native to the United States?


Describe the foliage of AcaciaconfusaMerr?

The foliage on matureAcacia confusaare usually falcate phyllodes. They are alternate and have a leathery texture. Leaves have parallel curving veins. They range from 3-4 in. (8-10 cm) long and are narrowed at both ends. Foliage on juvenileAcacia confusaare usually of bipinnate with 4-8 pairs of pinnae. Each pinnae has 10-12 pairs of small asymmetric leaflets.


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


Does AcerpalmatumThunb. pose any ecological threat?

Acer palmatumis native to Japan, China and Korea. It is often used as a landscape ornamental plant.Acer palmatumcan be found in yards, along roadsides, and streams. It has escaped cultivation, naturalised and is considered a weed in New South Wales and other parts of Australia.Acer palmatumhas escaped and naturalized in the eastern United States and Hawaii, Canada and New Zealand. Widespread use of this plant increases the probability that more will escape from cultivation.


Does river redgum pose any ecological threat?

Eucalyptus camaldulensisis fast growing tree that is commonly used for firewood. Many people have discovered the tree’s rapid growth and prefer to plant it instead of native trees. This tree can be found along water ways and other wetlands. It is native to Australia.


What is the common name of TrifoliumpratenseL.?


Where can I view images of Caesalpiniagilliesii(Wall. ex Hook.) Wall. ex D. Dietr.?


Is this plant invasive to the United States?


Is DianthusarmeriaL. native to the United States?


Each cluster of flowers is replaced by a dense cluster of seedpods. Each seedpod is dark-colored, hairy, strongly curled, and about 0.13 in. (0.32 cm) long containing a single dark seed that is somewhat flattened and reniform (kidney-shaped).


Describe the foliage of smallflower tamarisk?

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 scientific name of elephant grass?


What is the scientific name of incense-cedar?


Where can I view images of sweet cherry?


What is the growth habit of common mediterraneangrass?


What is the scientific name of fishtail swordfern?


What is the growth habit of BromushordeaceusL.?


Describe the appearance of LigustrumjaponicumThunb.?

Ligustrum japonicumis a thick, evergreen shrub that grows up to 20 ft. (6.1 m) in height. The trunks usually occur as multiple stems with many long, leafy branches.


What is the common name of ZosterajaponicaAsch. & Graebn.?


Describe the foliage of AegilopscylindricaHost?

The leaves are alternate, up to 0.5 in. (1.2 cm) wide with thin hairs along the margins, sheath openings and auricles. The ligule is short and membranous.


Is PopulusnigraL. native to the United States?


Where can I view images of southern crabgrass?


Does ovate goatgrass pose any ecological threat?

A. geniculatacan be found growing along roadsides, ditches, abandoned fields and other disturbed sites.


Where can I view images of ThunbergiaalataBojer ex Sims?


Where can I view images of Landoltiapunctata(G.F.W. Mey.) D.H. Les & D.J. Crawford?


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


Where can I view images of CampanularapunculoidesL.?


What is the scientific name of smooth hawkweed?


Is this plant invasive to the United States?


Describe the foliage of SalviniamolestaD. S. Mitchell?

Floating leaves are 0.5-1.5 in. (2.5-3.8 cm) long, oblong, and vary in color from green to gold to brown. The surfaces of the leaves have rows of arching hairs that look like little egg-beaters. When young, leaves are smaller and lie flat on the surface of the water.


What is the U.S. Department of Agriculture (USDA) plant symbol for BambusavulgarisSchrad. ex J.C. Wendl.?


What is the scientific name of narrowleaf dock?


What is the common name of RubusillecebrosusFocke?


What is the scientific name of kangaroothorn?


Describe the appearance of japanese climbing fern?

Lygodium japonicumis a perennial climbing fern that can reach lengths of 90 ft. (30 m). Vines are thin, wiry, green to orange to black and usually die back in the winter.


What is the common name of ViburnumsetigerumHance?


Does Tibouchinaurvilleana(DC.) Cogn. 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 growth habit of Malustoringo(Siebold) Siebold ex de Vriese?


What is the growth habit of lombardy poplar?


Is deeprooted sedge native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Phragmitesaustralis(Cavanilles) Trinius ex Steudel?


What is the common name of Bromusdiandrusvar. rigidus(Roth) Sales?


What is the scientific name of wild marigold?


What is the growth habit of VeronicaserpyllifoliaL.?


What is the growth habit of AcercampestreL.?


What is the growth habit of western salsify?


Fruit is a tan, hairy achene 0.08-0.12 in. (2-3 mm) long, may have a small, dark pappus.


What is the common name of BrassicatournefortiiGouan?


What is the common name of CallitrichestagnalisScop.?


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


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


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

Potentially Invasive, Prohibited (Connecticut)


Does cheatgrass, downy brome pose any ecological threat?

Bromus tectorumhas the ability to draw down soil moisture and nutrients to very low levels, making it difficult for other species to compete. An increased cycle of fires favors annual species at the expense of many perennials. Due to its tendency to mature early and then dry out, it gains a competitive advantage through the promotion of fire. It is an agricultural, nursery and orchard pest.


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 flowers of brittleleaf naiad?

Najas minoris a monoecious plant, with 1-2 flowers per axil. The male flowers are located distally and are 0.08 in. (1.9-2.2 mm) in size. The involucre has two lobes and the beaks are 0.02-0.08 in. (0.4-2.1 mm) in length. The female flowers are located in the distal to proximal axils and measure 0.8 in. (2.2 mm) in size.


Does QuercusroburL. pose any ecological threat?

Q. roburis easily grown in average, medium, well-drained soils in full sun. It prefers moist well-drained soils, but adapts to a wide range of soil conditions. Can take up to 25-30 years for this tree to bear a first crop of acorns.


Seeds are medium-size and found in a 2-celled or 4-celled green capsule that dries and bursts open at maturity. The plant also spreads by lateral roots.


What is the scientific name of hairy wallaby grass?

Rytidospermapenicillatum(Labill.) Connor & Edgar


Is snowbush native to the United States?


What is the common name of CentaureamelitensisL.?


Where can I view images of anil de pasto?


What is the common name of MesembryanthemumcrystallinumL.?


What is the growth habit of japanese barberry?


What is the growth habit of cultivated garlic?


Describe the appearance of RicinuscommunisL.?

Ricinus communisis an annual evergreen shrub that can grow from 3.3-16.4 ft. (1-5 m) tall.


Does dwarf honeysuckle pose any ecological threat?

Lonicera xylosteumis native to Europe and occurs in poor, well-drained soils in full sun.


Is cutleaf blackberry native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Rottboelliacochinchinensis(Lour.) W.D. Clayton?


What is the growth habit of dotted smartweed?


Describe the appearance of marsh thistle?

Cirsium palustreis an herbaceous biennial that can grow from 4-5 ft. (1.25-1.5 m) tall. The glabrate stem is winged and armed with spines that result from its decurrent leaf bases. Much of the plant is covered in long, sticky hairs.


Where can I view images of whorled pennywort?


What is the common name of ZygophyllumfabagoL.?


Describe the flowers of Tamarixaphylla(L.) Karst.?

Small, white to pink flowers develop on 2 in. (5.1 cm) long spikes from March to September.


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

Flowering occurs in midsummer, when 0.5 in. (1.3 cm) long, purple, fragrant flowers hang, in clusters, in the axils of the leaves.


Where can I view images of Carpobrotusedulis(L.) N.E. Br?


Does miramar weed pose any ecological threat?

Hygrophila polyspermacan become an invasive problem in some tropical and temperate regions outside of its native range. It is listed as a noxious weed in the United States.Hygrophila polyspermahas only been reported in Alabama, Florida, Kentucky, South Carolina, Texas and Virginia. It has also been reported in Northern Mexico.


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


Is CerastiumglomeratumThuill. native to the United States?


Is this plant invasive to the United States?


Is puncturevine native to the United States?


What is the scientific name of willowleaf lettuce?


Is LonicerafragrantissimaLindl. & Paxton native to the United States?


Describe the appearance of paper-mulberry?

Broussonetia papyriferais a fast-growing, deciduous tree that grows up to 50 ft. (15.2 m) in height. It invades disturbed areas throughout the eastern United States. The tree crown is broad and rounded with wide-spreading branches. Winter twigs have a "fuzzy" appearance.


What is the scientific name of monterey pine?


Is CentaureamelitensisL. native to the United States?


Its sweetly scented flowers are radially symmetrical and pink, or sometimes white. Each of the five flat petals have two small scales in the throat of the corolla. They are about 1 in. (2.5 cm) wide. They are arranged in dense, terminal clusters on the main stem and its branches. In the northern hemisphere it blooms from May to September, and in the southern hemisphere October to March.


Describe the appearance of RaphanussativusL.?

Raphanus sativusis an edible root vegetable. It can grow up to 6 in. (15.2 cm) tall.


What is the scientific name of java plum?


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


What is the scientific name of haspan flatsedge?


Where can I view images of small broomrape?


What is the U.S. Department of Agriculture (USDA) plant symbol for Asclepiasphysocarpa(E. Mey.) Schlechter?


Is pomegranate native to the United States?


Is BromushordeaceusL. native to the United States?


Where can I view images of Merremiatuberosa(L.) Rendle?


Describe the appearance of Arthraxonhispidus(Thunb.) Makino?

The plant stands to 1.5 ft. (0.5 m) tall with oval to lance-shaped leaves.


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

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.


Where can I view images of holly osmanthus?


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


Describe the foliage of Cinnamomumcamphora(L.) J. Presl?

The alternate leaves are shiny, dark green above and lighter green below, have wavy margins, three distinct, yellow veins and are 1.5-4 in. (3.7-10.1 cm) long. A distinctive odor of camphor is emitted when the leaves are crushed.


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


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


What is the scientific name of ptychosperma?


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


What is the growth habit of Rhodotyposscandens(Thunb.) Makino?


What is the growth habit of floating bladderwort?


Is LeucanthemumvulgareLam. native to the United States?


What is the common name of AgrostisgiganteaRoth?


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.


Does camelthorn pose any ecological threat?

Alhagi maurorumis found in arid, agricultural areas and riverbanks of the western U.S. where it has access to water during the growing season. The plant rapidly colonizes an area by producing new plants from its creeping roots. It is native to the Mediterranean region and western Asia and was introduced to the United States in the early 1900s as a contaminant in alfalfa seed.


Is Centromadiapungensssp. pungens(Hook. & Arn.) Greene native to the United States?


What is the scientific name of javanese glorybower?

ClerodendrumspeciosissimumVan Geert ex Morr.


What is the common name of SolanumpimpinellifoliumJusl.?


What is the scientific name of colonial bentgrass?


Is medusahead native to the United States?


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


Where can I view images of bur buttercup?


What is the growth habit of sensitive partridgepea?


What is the common name of Polycarpontetraphyllum(L.) L.?


The thin seed pods are 2-4 in. long and densely covered with bristly hairs.


Where can I view images of Dipsacussativus(L.) Honckeny?


What is the scientific name of japanese netvein hollyfern?


Where can I view images of thorny olive?


Is SchinusterebinthifoliaRaddi native to the United States?


What is the scientific name of coco yam, wild taro?


Describe the flowers of chinese tallowtree?

Flowering occurs from April to June. The flowers are yellowish and occur on 8 in. (20 cm) long, dangling spikes.


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


Is PrunussubhirtellaMiq. native to the United States?


Is honduras pine native to the United States?


Where can I view images of european frog-bit?


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


What is the scientific name of golden wattle?


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


The seeds are small and rapidly transported to un-infested areas on boots, vehicles, and by wildlife.


What is the scientific name of japanese pagoda tree?


Is this plant invasive to the United States?


Where can I view images of Luzulaluzuloides(Lam.) Dandy & Wilmott?


Is AmaranthusviridisL native to the United States?


Where can I view images of halogeton, saltlover?


Is new zealand spinach native to the United States?


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


What is the growth habit of saltmeadow cordgrass?


What is the scientific name of sensitive partridgepea?


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


What is the U.S. Department of Agriculture (USDA) plant symbol for tall morning-glory?


Is tuna cactus native to the United States?


Describe the appearance of evergreen clematis?

Clematis vitalbais a perennial, rapidly growing woody vine that can grow up to 100 ft. (30.5 m) long and completely blanket surrounding vegetation.


Is HydrophyllumvirginianumL. native to the United States?


Where can I view images of JuncusplanifoliusR. Br.?


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


What is the common name of CotoneasterpannosusFranch.?


Where can I view images of CanavaliacatharticaThouars?


Is this plant invasive to the United States?


What is the growth habit of BromustectorumL.?


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


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


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


Is tree marigold native to the United States?


What is the common name of HypericumcalycinumL.?


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


Is EuphorbiaesulaL. native to the United States?


Is cuban bulrush native to the United States?


What is the common name of SolivasessilisRuiz & Pavón?


Describe the fruit of malta starthistle?

The fruit are 0.08-0.12 in. (2-3 mm) in length, grayish to tan in color with deeply notched bases and tan bristles that are 0.04-0.12 in. (1-3 mm) long.


The leaves are alternate and bipinnately-compound (twice divided) leaves up to 18 in. long and ovate to oblong in shape. Leaflets are variable in shape and size growing up to 3.5 in. long, glabrous, and usually serrate. Leaves are dark green above and lighter green below.


Where can I view images of HolcuslanatusL.?


Describe the appearance of LeucojumaestivumL.?

Leucojum aestivumis a perennial herb that can grow from 1-1.5 ft. (0.3-0.5 m) tall.


Is PhyllanthusurinariaL. native to the United States?


Describe the appearance of Achnatherumbrachychaetum(Godr.) Barkworth?

Achnatherum brachychaetumis a densely tufted perennial, with shallow roots and erect stems to 3.3 ft. (1 m) tall. Foliage is tough and unpalatable to livestock, except for young shoots. It is present almost year round. It is often associated with alfalfa fields. The dense clumps can mechanically interfere with mowing.


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


Where can I view images of green kyllinga?


What is the common name of LeucanthemumvulgareLam.?


Describe the fruit of benghal dayflower?


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


What is the growth habit of ChlorisbarbataSw.?


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


Is this plant invasive to the United States?


The bipinnate leaves are about 10 in. (25 cm) long. There are approximately 12 pairs of lanceolate shaped leaflets each about 0.35-0.47 in. (9-12 mm) long, 0.08-0.14 in. (2-3.5 mm) wide. Leaflets are oppositely arranged.


Describe the flowers of FrangulaalnusMill.?

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.


Is anglestem beaksedge native to the United States?


Where can I view images of Sonchusasper(L.) Hill?


Describe the foliage of Brassicanigra(L.) W.D.J. Koch?

The leaves are alternate up to 10 in. (25 cm) long and 3 in. (7.6 cm) across, becoming smaller as they ascend the stems. The lower leaves are pinnate and obovate. The upper surface of a lower leaf is often has scattered hairs that are stiff, short, and white.


What is the growth habit of CardiospermumhalicacabumL.?


Fruits are red to orange, globose and 1-1.6 in. (3-4 cm) in diameter.


What is the scientific name of white cockle?

Silenelatifoliassp. alba(Mill.) Greuter & Burdet


What is the growth habit of night jessamine?


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


What is the scientific name of smallflower sweetbrier?


What is the growth habit of ViolaodorataL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Thespesiapopulnea(L.) Soland. ex Correa?


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


Where can I view images of Photiniavillosa(Thunb.) DC.?


What is the growth habit of LeucanthemumvulgareLam.?


Flowers are small, white to yellowish in color, and found in clusters. The blooming period occurs in winter from January to March.


Is Centranthusruber(L.) DC. native to the United States?


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


Describe the fruit of Thymelaeapasserina(L.) Coss. & Germ.?

The fruit is a shiny black ovoid achene. The seeds are rounded and brown to black in color.


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 common name of Sansevieriahyacinthoides(L.) Druce?


Where can I view images of CichoriumintybusL.?


What is the growth habit of SaponariaofficinalisL.?


Does VerbenamontevidensisSpreng. pose any ecological threat?

Verbena montevidensisis native to South America. It has escaped cultivation and become naturalized in disturbed areas across the southeastern United States.V. montevidensisis drought and heat tolerant and is very common along roadsides and other disturbed areas.Verbena montevidensisis very similar toV. bonariensisandV. incomptabut all are invasive species.


Does musk thistle, nodding thistle pose any ecological threat?

Carduus nutansinvades a variety of disturbed areas. Pastures are particularly at risk because It is unpalatable to livestock. Once established it can spread rapidly due to high seed production (as much as 120,000 seed per plant).Carduus nutansis native to Western Europe and was accidentally introduced into the United States in the early 1900s.


Is Digitariasanguinalis(L.) Scop native to the United States?


Describe the fruit of SpartiumjunceumL.?

Seeds can remain viable in soil for more than 80 years.


What is the U.S. Department of Agriculture (USDA) plant symbol for blue morning-glory?


What is the scientific name of thunberg's meadowsweet?


The inflorescence color changes from green to purplish to tan as the seeds mature. There are both sterile and fertile lemmas.


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


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


Is standish's honeysuckle native to the United States?


Where can I view images of big chickweed?


What is the common name of Solidagocanadensisvar. scabraTorr. & Gray?


Is SolanumtriflorumNutt. native to the United States?


What is the growth habit of malta starthistle?


Where can I view images of japanese climbing fern?


Is Conyzabonariensis(L.) Cronquist native to the United States?


Is this plant invasive to the United States?


What is the common name of LoniceratataricaL.?


Where can I view images of Albizialebbeck(L.) Benth?


What is the scientific name of western waterhemlock?


Does BuddlejadavidiiFranch. pose any ecological threat?

Buddleja davidiireadily invades disturbed sites and riparian areas. Although butterflies will use this plant as a nectar source their larvae cannot survive on it. By replacing native larval food source plants butterflybush can have a negative impact on wildlife.


Is ViolaodorataL. native to the United States?


Describe the flowers of PhyllostachysaureaCarr. ex A.& C. Rivière?

Flowering is very rare (maybe once every 7 to 12 years).


What is the scientific name of two-horned trapa?


Does japanese chaff flower pose any ecological threat?

AlthoughAchyranthes japonicaprefers partial sun and moist soils it can survive in shade and dry conditions. It readily invades bottomland forests, wooded riverbanks, roadsides, ditches and field edges.Achyranthes japonicacan form dense monocultures shading and outcompeting native plant species.


Describe the appearance of garden loosestrife?

Lysimachia vulgarisis an herbaceous perennial with erect stems up to 3.3 ft. (1 m) in height and long, stolon-like rhizomes that can run 33 ft. (10 m) long.


Describe the fruit of CelastrusorbiculatusThunb.?

The small globose fruits are green when young; ripen to yellow; then split to reveal showy, scarlet berries that persist into winter.


Is common velvetgrass native to the United States?


Is Rottboelliacochinchinensis(Lour.) W.D. Clayton native to the United States?


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


Describe the foliage of DioscoreapolystachyaTurcz.?

The leaves are alternate proximally but can become opposite as they advance up the vine. They are about 3 to 6 inches long, 3 to 4 inches wide and heart to fiddle shaped (margins three-lobed), with prominent, parallel veins. The petiole base is not clasping. Leaves are usually more rounded when young or on young plants and fiddle shaped farther along the stem and on older plants. The rounded stems are thin and wiry.


Where can I view images of arabian schismus?


What is the invasive/noxious status of yellow floating heart and where is it classified as such?

Invasive (North Carolina), Potentially Invasive, Prohibited (Connecticut), Prohibited (New York), Prohibited (Wisconsin), Proposed Prohibited (Minnesota), Watch List, Prohibited (Michigan)


Is this plant invasive to the United States?


Describe the appearance of ButomusumbellatusL.?

Butomus umbellatusis a perennial which spreads primarily from rhizomes. This aquatic plant invades along the margins of slow moving waterways. This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. It does not tolerate salt water.


Describe the fruit of AlbiziajulibrissinDurazz.?

Fruit are flat, 6 in. (15.2 cm) long seed pods that develop in the late summer.


What is the growth habit of fragrant waterlily?


What is the scientific name of kahila garland-lily?


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

Noxious (United States), Prohibited (Minnesota), Prohibited (Wisconsin)


Does PhyllostachysaureaCarr. ex A.& C. Rivière pose any ecological threat?

Infestations are commonly found around old homesites and can rapidly expand in size.Phyllostachys aureacan form dense, monocultural thickets that displace native species. Once this plant is established, it is difficult to remove. It is native to China and was first introduced into the United States in 1882 for ornamental purposes.


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 common name of Artemisiavulgarisvar. vulgarisL.?


Is CentaureajaceaL. native to the United States?


What is the growth habit of camphortree?


What is the growth habit of oriental lady's thumb?


Describe the foliage of strawberry guava?

Leaves are opposite, oblong, glossy, entire and up to 3 in. (7.6 cm) long.


Describe the flowers of Triadicasebifera(L.) Small?

Flowering occurs from April to June. The flowers are yellowish and occur on 8 in. (20 cm) long, dangling spikes.


What is the growth habit of hyssop loosestrife?


What is the U.S. Department of Agriculture (USDA) plant symbol for Capsellabursa-pastoris(L.) Medik.?


Is Gunneratinctoria(Molina) Mirb. native to the United States?


What is the common name of SpiraeaprunifoliaSieb. & Zucc.?


Describe the foliage of LinariavulgarisP. Mill.?

Leaves are nearly sessile, drooping, linear and 1-2 in. (2.5-5 cm) long. Leaves can sometimes be sparsely covered by long hairs.


Does RhamnuscatharticaL. pose any ecological threat?

Rhamnus catharticainvades forests, prairies, and savannas in the Midwestern United States and can form dense thickets crowding out native shrubs and understory plants. It is difficult to remove and can regenerate after cutting or burning. It is a native of Europe and was introduced into the United States as an ornamental shrub.


Is this plant invasive to the United States?


Is ivyleaf speedwell native to the United States?


What is the scientific name of camphortree?


What is the growth habit of mediterranean clone of caulerpa?


Where can I view images of mourningbride?


Where can I view images of Pinuselliottiivar. elliottiiEngelm.?


Where can I view images of clammy goosefoot?


What is the scientific name of australian-pine?


What is the growth habit of PilosellaofficinarumVaillant?


Is smooth cordgrass native to the United States?


What is the invasive/noxious status of narrow-leaved cattail and where is it classified as such?


What is the growth habit of Ipomoeaindica(Burm. f.) Merr.?


What is the growth habit of Veronicaanagallis-aquaticaL.?


Describe the flowers of common burdock, lesser burdock?

Flowering occurs in July to October, when pink to purple flowers develop. Flowers are enclosed in a prickly bur.


What is the scientific name of hawkweed oxtongue?


What is the growth habit of norway maple?


Is smallflower galinsoga native to the United States?


Fruit is about 0.67 in. (17 mm) long and tapering to a conical beak. The seeds are dark brown to black in color with a pungent taste.


Is Romulearoseavar. australis(Ewart) de Vos native to the United States?


Where can I view images of Ludwigiapeploides(Kunth) Raven?


Is this plant invasive to the United States?


Is linden viburnum native to the United States?


What is the common name of DalbergiasissooRoxb. ex DC.?


What is the growth habit of rangoon creeper?


What is the scientific name of bristly locust?


Each flower is about 0.33 in. (0.85 cm) across, consisting of 5 spreading petals, a tubular green calyx with 5 teeth, 10 stamens with pink anthers, and 2 styles. The petals are pink with small white dots. Each petal is wedge-shaped at its base, and crenate or dentate toward its outer edge.


Is japanese maple native to the United States?


What is the common name of Schizachyriumcondensatum(Kunth) Nees?


What is the scientific name of stickbush?


Where can I view images of LigustrumvulgareL.?


Where can I view images of Macroptiliumlathyroides(L.) Urb.?


Where can I view images of PerseaamericanaP. Mill.?


What is the growth habit of Colocasiaesculenta(L.) Schott?


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


What is the growth habit of SpartinaanglicaC.E. Hubbard?


What is the scientific name of wild parsnip?


Is leafy spurge native to the United States?


Does orchardgrass pose any ecological threat?

Dactylis glomeratais native to Europe and was first introduced to the United States in the late 1700s. It prefers areas that are well-drained with moderately fertile to rich soils.


Is this plant invasive to the United States?


What is the growth habit of Echinochloacolona(L.) Link?


Where can I view images of Cryptomeriajaponica(L. f.) D. Don?


Describe the fruit of DianthusarmeriaL.?

Each seed is orbicular or rein form and flattened with small bumps across its surface. The root system consists of a slender taproot. This plant spreads by reseeding itself.


Describe the appearance of athel tamarisk?

Tamarix aphyllais deciduous shrub that can grow up to 15 ft. (4.6 m) in height.


Is CarexkobomugiOhwi native to the United States?


Where can I view images of two-horned trapa?


Describe the appearance of black bamboo?

Phyllostachys nigrais a large perennial woody grass that can reach from 20 to 35 ft. (6.1-10.7 m) in height. Stems may be smooth to ribbed and glabrous. There may be a dense fringe of purplish to brown hairs just above the node with nodal ridges moderately prominent. Sheath scars may be as prominent as the nodal ridges.


Where can I view images of broadleaf dock?


What is the common name of AgrostisstoloniferaL.?


What is the growth habit of PersicariamaculosaS.F. Gray?


Is passionflower native to the United States?


What is the common name of GeraniumpurpureumVill.?


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


What is the growth habit of bur chervil?


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


What is the common name of StellariagramineaL.?


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


Is european crabapple native to the United States?


Is this plant invasive to the United States?


Is smilo grass native to the United States?


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


Where can I view images of SorbusaucupariaL.?


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


Where can I view images of Liriopemuscari(Dcne.) Bailey?


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


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


Does CyperusrotundusL. pose any ecological threat?

Infests crop production areas in tropical and temperate climates, causing large losses in crop yields.


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


Describe the flowers of annual bluegrass?

The seed head is an open panicle, 0.75-2.5 in. (1.9-6.4 cm) long, and pyramidal in outline.


Is field pennycress native to the United States?


What is the common name of PaederiacruddasianaPrain?


What is the common name of IndigoferasuffruticosaP. Mill.?


Describe the appearance of skeletonleaf bursage?

Ambrosia tomentosa'is a long lived perennial herbaceous plant in the sunflower family (Asteraceae) growing up to 3 ft (0.91 m) in height.A. tomentosadevelops extensive horizontal roots. It is native to the Great Plains region.


Does SolanumdulcamaraL. pose any ecological threat?

Solanum dulcamarainvades thickets, fence rows, pond margins, low woods and roadsides. It is native to Eurasia. All parts of the plants are toxic. Always wear gloves and protective clothing when handling this plant.


What is the scientific name of panicled hydrangea?


What is the growth habit of SalsolakaliL.?


What is the growth habit of Rumexcrispusssp. crispusL.?


Describe the fruit of PotentillarectaL.?

Fruits are small, dark brown achenes with pale veins. Seeds often have a webbed or net-like pattern on them.


Describe the foliage of Taeniatherumcaput-medusae(L.) Nevski?

Leaves are less than 0.13 in. (0.32 cm) wide. One or more stems arise from the base of the plant and can be as much as 2 ft. (0.6 m) tall. Each stem produces a single, short, spike-type seed head.


What is the common name of HydrophyllumvirginianumL.?


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


Describe the fruit of DipsacusfullonumL.?

Fruit is angled and approximately 0.08-0.12 in. (2-3 mm) long. Seeds are small and are dispersed by the wind after the seed-head has dried.


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


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


What is the scientific name of yellow fieldcress?


Is blackthorn native to the United States?


Taeniatherum caput-medusais an annual grass that is 8-24 in. (20.3-61 cm) tall and has distinct bristly seed heads and few leaves.


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


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.


This slender tree has a single trunk with dark grey outer bark and orange inner bark. Leaves are compound with 4-12 leathery, yellow green, 7.9 in. (20 cm) long, leaflets with smooth margins and rounded tips.


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


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


What is the growth habit of clover dodder?


What is the common name of Corispermumamericanumvar. rydbergiiMosyakin?


What is the scientific name of yellow woodsorrel?


Describe the appearance of garlic mustard?

Alliaria petiolatais an herbaceous, biennial forb. First year plants are basal rosettes which bolt and flower in the second year. Plants can be easily recognized by a garlic odor that is present when any part of the plant is crushed.


What is the scientific name of siberian peashrub?


Does amur corktree pose any ecological threat?

This tree is demonstrating invasive characteristics in suburban and urban fringe forests. It escapes intended plantings to invade and displace native hardwood forest. Note: only female plants have potential to become invasive.Phellodendron amurenseis native to eastern Asia and was introduced into the United States in 1856. Trees prefer full sun and rich soils.


What is the growth habit of autumn olive?


Is Coronopusdidymus(L.) Sm. native to the United States?


Describe the appearance of kentucky bluegrass?

Poa pratensis, commonly known as Kentucky Bluegrass or Common Meadow-grass, is a perennial species of grass. A long-lived sodgrass with rhizomes, growing 0.5-3 ft. (0.2-0.9 m) tall.


What is the scientific name of stinging nettle?


Where can I view images of Wisteriafloribunda(Willd.) DC.?


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


What is the common name of ReynoutriasachalinensisF. Schmidt ex Maxim.?


Is birdsrape mustard native to the United States?


Describe the appearance of flowering rush?

Butomus umbellatusis a perennial which spreads primarily from rhizomes. This aquatic plant invades along the margins of slow moving waterways. This plant can reach from 1-5 ft. (0.3-1.5 m) in height and can survive in water of up to 9.8 ft. (3 m) deep. It does not tolerate salt water.


What is the common name of CentaureacalcitrapaL.?


Is this plant invasive to the United States?


Is white garland-lily native to the United States?


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

Silybum marianumis an annual or biennial herb that ranges from 2-6 ft. (0.6-1.8 m) in height.


Does purple loosestrife pose any ecological threat?

Lythrum salicariais a serious invader of many types of wetlands, including wet meadows, prairie potholes, river and stream banks, lake shores, tidal and nontidal marshes, and ditches. It can quickly form dense stands that completely dominate the area excluding native vegetation. This plant can spread very rapidly due to its prolific seed production; each plant can produce up to 2.5 million seeds per year. It can also hybridize with native loosestrife species, potentially depleting the native species gene pool.Lythrum salicariais native to Europe and Asia. It was first introduced into North America in the early 1800s for ornamental and medicinal purposes.


Flowering occurs March to July when tubular, lavender flowers appear in the axils of the leaves. Flowers are 0.4 in. (0.9 cm) long and come in clusters of two or more.


Is rush skeletonweed native to the United States?


What is the scientific name of showy rattlebox?


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

Aquatic Nuisance (Class 2, Regulated) (North Dakota), Invasive, Restricted (Michigan), Potentially Invasive, Prohibited (Connecticut), Prohibited (Minnesota), Restricted (Wisconsin)


What is the scientific name of field horsetail?


Fruit is a yellow-brown ovoid achene. The small seeds are distributed by wind and water.


What is the common name of TrifoliumsubterraneumL.?


What is the common name of Stachysarvensis(L.) L.?


Describe the flowers of RobiniapseudoacaciaL.?

Flowering occurs in the spring, when showy, fragrant, white to yellow flowers develop in 8 in. (20.3 cm) long clusters.


Where can I view images of coconut palm?


Is showy rattlebox native to the United States?


Describe the appearance of ChelidoniummajusL.?

Chelidonium majusis a brittle, herbaceous biennial that reaches 11-31 in. (30-80 cm) in height. Its stems are ribbed and branching. The lower parts of the branches are pubescent. When the branches or leaves are broken a yellowish-orange sap can be seen.


Where can I view images of trumpet creeper?


What is the invasive/noxious status of air-potato 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 PotentillarectaL.?


Flowers are small, greenish-white, with five petals and produced in clusters.


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


Describe the flowers of old world climbing fern?


Is Richardiagrandiflora(Cham. & Schlecht.) J.A. & J.H. Schultes native to the United States?


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


Is DalechampiascandensL. native to the United States?


What is the growth habit of large gray willow?


What is the growth habit of eastern redcedar?


What is the growth habit of tropical soda apple?


Describe the foliage of japanese privet?

Leaves are opposite, oval, up to 2 in. (5.1 cm) long, with a pointed apex and often with margins that are slightly rolled.


What is the scientific name of hairy cat's ear?


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


Where can I view images of Hydrillaverticillata(L. f.) Royle?


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


Describe the foliage of Hydrocharismorsus-ranaeL.?

The leaves of the plant are round, and heart shaped, (the size of a Canadian two-dollar coin) with veins coming off the mid-vein that arch broadly following the shape of the leaf. The undersides of the leaves are dark purplish-red and have a spongy coating, which helps the plant float on top of the water.


What is the common name of Persicariacapitata(Buch.-Ham. ex D. Don) Gross.?


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

The alternate, bright green, palmately veined, three to five-lobed leaves ofF. simplexare extremely large with each leaf reaching up to 12 in. (30.5 cm) across. The foliage ofF. simplexoften turns bright yellow in fall.


Is illyrian cottonthistle 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.


The basal leaves are oblanceolate to elliptic and 2-10 in. (5 -25 cm) long. Leaves become smaller as they ascend the stem. These smaller leaves are lanceolate and attach directly to the stem.


What is the U.S. Department of Agriculture (USDA) plant symbol for Lonicerax bellaZabel [morrowii × tatarica]?


Describe the appearance of queen-devil hawkweed?

Hieracium glomeratumis a perennial herbaceous plant in the sunflower family. The rounded leafless stems contain a milky sap and range from 12-27.6 in. (30-70 cm) tall.H. glomeratumis native to Europe.


What is the U.S. Department of Agriculture (USDA) plant symbol for Verbesinaencelioides(Cav.) Benth. & Hook. f. ex Gray?


Is MesembryanthemumnodiflorumL. native to the United States?


The leaves are spirally arranged, simple, 3.9-13.8 in. (10-35 cm) long and 2-4.7 in. (5-12 cm) broad, and are covered with gray-white pubescent and glandular hairs. The foliage forms a tight rosette at ground level in the first year.


Where can I view images of LoniceraxylosteumL.?


What is the common name of CarduuspycnocephalusL.?


Where can I view images of java waterdropwort?


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


Is RosamicranthaBorrer ex Sm. native to the United States?


What is the common name of PinussylvestrisL.?


Does poison hemlock pose any ecological threat?

C. maculatumcontains highly poisonous alkaloids toxic to mammals. Human deaths have occurred from harvesting and consuming the roots as wild carrots or parsnips.C. maculatumquickly colonizes disturbed habitats such as roadsides, old fields, fencerows and ditches. In natural areas it can displace native plant species and prefers riparian habitats. Many U.S states have listedC. maculatumas a noxious weed.


Where can I view images of ReynoutriasachalinensisF. Schmidt ex Maxim.?


What is the scientific name of fragrant waterlily?


What is the scientific name of birch-leaf pear?


Is senegal date palm native to the United States?


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


Is this plant invasive to the United States?


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


What is the growth habit of Myriophyllumspp.?


Is ScolymushispanicusL. native to the United States?


Fruit are small and have a persistent ring of white hairs (pappus) attached. 60,000-70,000 seeds produced per plant. Seeds can remain viable for up to 15 years.


Where can I view images of fivestamen tamarisk?


Is golden polypody native to the United States?


Where can I view images of canada bluegrass?


Is treasureflower native to the United States?


Is MiconiacalvescensDC. native to the United States?


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


Where can I view images of Oenanthejavanica(Blume) DC.?


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


Leaves are opposite, oblong, 1-2.4 in. (2.5-6 cm) long, and 0.2-0.6 in. (0.5-1.5 cm) wide. Foliage can be pubescent along the underside of the midvein.


Where can I view images of BellisperennisL.?


Is black medic native to the United States?


Describe the foliage of TribulusterrestrisL.?

Leaves are opposite, hairy, 1-3 in. (2.5-7.6 cm) long, and divided into 8-18 oblong leaflets.


Is Cyanthilliumcinereum(L.) H.E. Robins. native to the United States?


Is arabian schismus native to the United States?


What is the common name of CyperusrotundusL.?


Describe the flowers of yellow starthistle?

Flowering occurs from June-October. Yellow flowers appear in heads at the tips of the branches. Bracts that extend the flower head have a small cluster of spines.


What is the growth habit of Gastridiumphleoides(Nees & Meyen) C.E. Hubbard?


Does CyperusesculentusL. pose any ecological threat?

Cyperus esculentusis widespread and varies morphologically. Four varieties are recognized. It can be aggressive, with the tubers persisting even when the plant is pulled up by the roots.Cyperus esculentuscan form dense stands especially in disturbed wetlands.


Is lily of the valley native to the United States?


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

Potentially Invasive, Prohibited (Connecticut), Prohibited (New York)


Is PrunuspadusL. native to the United States?


Lepidium drabais a perennial forb in the mustard family that can grow up to 2 ft. (0.6 m) tall.


Does scotch broom pose any ecological threat?

Cytisus scopariusoccurs along roadsides, coastal sites, disturbed sites, pastures, and dry scrubland. Its nitrogen fixing ability allows it to compete successfully on poor, dry, sandy soils. It grows well in full sun. It has been considered a pest weed since the 1920’s on the West Coast.Cytisus scopariusis native to western and central Europe. It was introduced into the United States as an ornamental in the early 1800s.


What is the common name of Leonuruscardiacassp. cardiacaL.?


Where can I view images of weeping willow?


Describe the flowers of Bellardiatrixago(L.) All?

Flowers are 0.3-0.4 in. (0.8-1 cm) long, upper lip is pale purple and lower lip is white. Flowering occurs from March to May.


Describe the foliage of PhyllostachysaureaCarr. ex A.& C. Rivière?

Leaves are alternate, 3-10 in. (7.6-25.4 cm) long and 0.25-0.75 in. (0.6-1.9 cm) wide.


Where can I view images of MesembryanthemumcrystallinumL.?


What is the growth habit of europe sage?


What is the growth habit of Asystasiagangetica(L.) T. Anders?


Describe the foliage of HelianthusciliarisDC.?

The mostly opposite leaves are cauline, sessile and veined. They are linear to lanceolate and from 1.2-3.0 x 0.2-0.9 in. (3-7.5 x 0.5-2.2 cm) long by wide.


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

Fruits are 1.6-2.7 in. (4-8 cm) long capsules. The capsules are 6-angled and cylindric-prismatic to ellipsoid. The average capsule contains about 120 white seeds that harden and turn brown as they mature.


Describe the foliage of EgeriadensaPlanch.?

The finely serrated leaves are usually less than 1 in. (2.5 cm) long and occur in whorls of 3-6.


Is flowering rush native to the United States?


What is the common name of UlmusproceraSalisb.?


Does Landoltiapunctata(G.F.W. Mey.) D.H. Les & D.J. Crawford pose any ecological threat?

Landoltia punctata invades quiet waters such as ponds, ditches, swamps and backwaters. It grows very quickly in water high in nutrients, for example from run off of fertilized fields. It is sometimes used to clean waste water. It probably has been introduced multiple times, possibly through the aquarium and water garden trade. Birds and other wildlife may transport it short distances, but it desiccates quickly after removal from the water.Landoltia punctatais often seen in large, almost pure populations while native duckweeds usually occur together with other duckweed species.


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


What is the growth habit of common filbert?


What is the common name of Macroptiliumlathyroides(L.) Urb.?


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


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 Oplismenusundulatifolius(Ard.) Roem. & Schult.?


Is shrubby lespedeza native to the United States?


Is LespedezabicolorTurcz. native to the United States?


Where can I view images of Vincetoxicumspp.L.?


What is the common name of OnopordumillyricumL.?


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


What is the common name of Prunussubhirtellavar. pendulaY. Tanaka?


Does bulbous bluegrass pose any ecological threat?

P. bulbosaovertakes open fields, yards and roadsides.


What is the U.S. Department of Agriculture (USDA) plant symbol for Flacourtiaindica(Burm. f.) Merr?


Is HypericumperforatumL. native to the United States?


What is the scientific name of barb goatgrass?


What is the common name of HemerocallislilioasphodelusL.?


What is the common name of GalinsogaquadriradiataCav?


What is the common name of CymbalariamuralisP.G. Gaertn., B. Mey. & Scherb.?


Where can I view images of orange hawkweed?


What is the scientific name of prostrate knotweed?


What is the common name of Oplismenushirtellus(L.) Beauv.?


What is the scientific name of common chickweed?


Where can I view images of butterflybush?


What is the scientific name of beach naupaka?


Where can I view images of BidenspilosaL.?


Is this plant invasive to the United States?


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


What is the common name of Fragariavescassp. vescaL.?


What is the growth habit of NeriumoleanderL.?


Describe the foliage of Rhodotyposscandens(Thunb.) Makino?

Leaves are opposite, simple, 2.5-4 in. (6.2-10 cm) long and doubly serrate. Leaves also have ribbed veins and a long, pointed tip.


Is ReynoutriasachalinensisF. Schmidt ex Maxim. native to the United States?


Is MalussylvestrisP. Mill. native to the United States?


Where can I view images of VincamajorL.?


What is the scientific name of blackeyed susan vine?


Is Sporobolusdiandrus(Retz.) P. Beauv. native to the United States?


What is the growth habit of onerow yellowcress?


What is the scientific name of spiny sowthistle?


Is Eriochloafatmensis(Hochst. & Steud.) W.D. Clayton native to the United States?


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


Does CentaureaibericaTrev. ex Spreng pose any ecological threat?

The sharp spines deter grazing animals, access to livestock and wildlife, reduce the value of hay and can impede recreational use. This weedy plant has the potential to become widely established, having significant impact to agriculture and wild land resources.


Phleum pratenseis a perennial bunchgrass, growing 2-3.5 ft. (0.61-1.1 m) tall, with a swollen or bulblike base, without rhizomes. It starts growth in early spring.


Does RubuslaciniatusWilld. pose any ecological threat?

Rubus laciniatuscan be found on thinned areas, fields, pastures, and disturbed forest lines. It is native to Eurasia.


What is the common name of Miscanthussacchariflorus(Maxim.) Franch.?


What is the scientific name of karaka nut?


What is the common name of EuphorbiapulcherrimaWilld. ex Klotzsch?


Describe the fruit of Tibouchinaurvilleana(DC.) Cogn.?

Fruits are round, dry, hard, brown in color, and less that 0.5 in. (1.3 cm) long. They aren’t showy and don't attract wildlife.


What is the growth habit of Cotulaaustralis(Sieber) Hook. f.?


Is this plant invasive to the United States?


Describe the foliage of EhrhartacalycinaSm.?

Leaves are green to reddish or purple tinged, flat, 3-8 in. (7.6-20.3 cm) long, and usually wrinkled along the margins.


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


Does mediterranean sage pose any ecological threat?

S. aethiopisis typically found in degraded sagebrush communities, disturbed sites, fields, rangelands, roadsides and some agronomic crops. Mediterranean sage is a state-listed noxious weed in Arizona, California, Colorado, Nevada, Oregon and Washington. The plant is native to Europe and may have been introduced in contaminated alfalfa seed.


Does chicory 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).


Describe the appearance of RubuslaciniatusWilld.?

Rubus laciniatusis a perennial vine or shrub that can grow up to 9.8 ft. (3 m) tall.


Where can I view images of Thinopyrumintermedium(Host) Barkworth & D.R. Dewey?


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


What is the growth habit of ElaeagnusangustifoliaL.?


Where can I view images of bladder campion?


Is bulbous buttercup native to the United States?


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


What is the scientific name of oakforest woodrush?


What is the U.S. Department of Agriculture (USDA) plant symbol for Menthax piperitaL. (pro sp.)?


Is apple-of-peru native to the United States?


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


What is the scientific name of alexandrian laurel?


Flowers are feathery, fan-shaped, terminal panicles. They are silvery to pink in color and up to 2 ft. (0.6 m) long. Flowering occurs September through October.


Where can I view images of Citrusx sinensis(L.) Osbeck (pro sp.) [maxima × reticulata]?


What is the common name of Epipremnumpinnatum(L.) Engl?


Describe the fruit of Hemerocallisfulva(L.) L.?

Spreads by growth from thick, tuberous roots from which new plants are produced; seed; people tossing away whole pulled plants and by farm equipment or other machinery in fields.


Is tree-of-heaven native to the United States?


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


What is the growth habit of SalsolapaulseniiLitv.?


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

Invasive (Delaware), Invasive, Prohibited (Connecticut), Prohibited (New York), Prohibited (Wisconsin)


Is this plant invasive to the United States?


Describe the foliage of Silybummarianum(L.) Gaertn.?

Leaves have shiny, green upper surfaces and are noticeably variegated with white markings. Basal leaves are 6-28 in. (15.2-71.1 cm) long with spiny margins. Much smaller stem leaves clasp the stem.


What is the growth habit of Lamiumpurpureumvar. purpureumL.?


Is bald brome native 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 scientific name of leafy spurge?


Describe the appearance of common buckthorn, european buckthorn?

Rhamnus catharticais a deciduous shrub or small tree that can grow to 25 ft. (7.6 m) in height. The bark is dark gray and the inner bark is orange (easily seen when the tree is cut). Twigs are usually tipped with a sharp spine.


What is the scientific name of siberian elm?


What is the common name of Acacialongifolia(Andr.) Willd.?


Is PassifloratarminianaCoppens & V. E. Barney native to the United States?


What is the scientific name of delta maidenhair?


Describe the foliage of PanicumrepensL.?

Leaves are linear, flat or folded, 10 in. (26 cm) long, 0.3 in. (5.3 mm) wide with a whitish, waxy covering. Leaf sheaths can be glabrous or hairy and the ligule is membranous with short hairs.


What is the scientific name of common vetch?


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


Is purple starthistle native to the United States?


What is the common name of Synedrellanodiflora(L.) Gaertn.?


Where can I view images of parrotfeather?


Where can I view images of pearl millet?


Is this plant invasive to the United States?


What is the scientific name of saltcedar?


Is Sisymbriumofficinale(L.) Scop. native to the United States?


What is the scientific name of turnipweed?


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


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


Where can I view images of Ipomoeacordatotrilobavar. cordatotrilobaDennst.?


What is the growth habit of common horse chestnut?


What is the growth habit of PhytolaccaamericanaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for morison's spurry?


What is the common name of CocosnuciferaLinnaeus?


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


Where can I view images of birch-leaf pear?


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


What is the common name of ArctiumminusBernh.?


Is Callicarpadichotoma(Lour.) K. Koch native to the United States?


Seed pods are hairy, swollen, and oblong with short beaks on the end. Oblong seeds are rough, dull gray-brown. It reproduces and spreads by seeds.


What is the common name of CentaureanigraL.?


Where can I view images of MalvasylvestrisL.?


Where can I view images of pale yellow iris, yellow flag iris?


Where can I view images of Poapratensisssp. pratensisL.?


What is the growth habit of AcaciaconfusaMerr?


Is this plant invasive to the United States?


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


What is the U.S. Department of Agriculture (USDA) plant symbol for lindley's butterflybush?


Describe the flowers of hairy indian mallow?

Flowers are solitary or in groups of 2-6 in naked cymes, exceeding the leaves. The peduncles and pedicels are up to 4 in. (10 cm) long and articulate. The calyx is about 0.4-0.6 in. (1.1-1.5 cm) long at the anthesis and lobed to near base. It is accrescent and loosely surrounds the fruit. The corolla is cup-shaped to subrotate with yellow to yellowish orange petals about 0.5-0.8 in. (1.2-2 cm) long. Petals are undulate-dentate apically with a staminal column approximately 0.2-0.3 in. (5-8 mm) long. The yellow style branches and the stigmas are maroon.


What is the common name of DigitalispurpureaL.?


What is the common name of VeronicachamaedrysL.?


Is AegilopsgeniculataRoth native to the United States?


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

Prohibited (Alaska), Restricted (Wisconsin)


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


Is NandinadomesticaThunb. native to the United States?


Flowers are yellow and usually clustered in groups of 15-50 flowers blooming from April to August. Each flower is about 0.13 in. (0.32 cm) long and each cluster is about 0.25 in. (0.64 cm) across.


Describe the appearance of japanese hop?

Humulus japonicusis an annual, climbing or trailing vine that is native to eastern Asia. This vine has 5-lobed leaves (generally), downward pointing prickles on the stem and bracts at the base of the petioles.


Does AlliumvinealeL. pose any ecological threat?

Allium vinealeis native to Europe and thrives in fields, meadows, waste grounds and other disturbed areas.


What is the growth habit of AcerpseudoplatanusL.?


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


Describe the flowers of wetland nightshade?

Solanum tampicensehas small, white flowers occur in small clusters at the leaf axils during the summer to fall.


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

Potentially Invasive, Prohibited (Connecticut), Prohibited (New York), Restricted (Wisconsin)


Describe the appearance of spiny plumeless thistle?

Carduus acanthoidesis an annual or biennial herbaceous plant that grows to 5 ft. (1.5 m) tall.


Is this plant invasive to the United States?


What is the growth habit of Plucheaindica(L.) Less.?


What is the scientific name of houndstongue?


What is the common name of PapaverdubiumL.?


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


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


What is the scientific name of common chickweed?


Is weeping willow native to the United States?


What is the growth habit of annual false-brome?


Where can I view images of IlexcrenataThunb.?


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


What is the growth habit of EucalyptusglobulusLabill.?


What is the scientific name of giant foxtail?


What is the growth habit of Crocosmiax crocosmiiflora(V. Lemoine) N.E. Br. [aurea × pottsii]?


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


Where can I view images of wayfaringtree?


Is onerow yellowcress native to the United States?


Is this plant invasive to the United States?


Is lily of the valley vine native to the United States?


Is dallisgrass native to the United States?


Describe the appearance of Didymospheniageminata(Lyngbye) M. Schmidt?

Didymosphenia geminatais a freshwater, single cell, diatom (a type of algae) which attaches itself to a solid surface such as a rock with a stalk.It is light brown, brownish yellow, or white, looking very much like wet toilet paper.Didymosphenia geminatahas the texture of wet wool or cotton, fibrous not slimy or slippery and is not easy to pull apart.


Is SalixbabylonicaL. native to the United States?


What is the common name of BromusarvensisL.?


What is the growth habit of common bamboo?


Where can I view images of AjugareptansL.?


Does himalayan blackberry pose any ecological threat?

As the plant grows and the stems touch the ground they root at the nodes, producing a dense thicket that shades out other plant species.


What is the growth habit of SpergulaarvensisL.?


What is the common name of AbutilontheophrastiMedik?


Describe the appearance of GeraniumlucidumL.?

Geranium lucidumgrows predominantly as an annual weed though it may become biennial depending on moisture conditions.


What is the growth habit of croftonweed?


What is the scientific name of deviltree?


Is SidaplanicaulisCav. native to the United States?


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


Is PlantagomajorL. native to the United States?


Where can I view images of common mallow?


What is the growth habit of LigustrumjaponicumThunb.?


Where can I view images of HelianthustuberosusL.?


Describe the flowers of LeonuruscardiacaL.?

Flowers are sessile and surround the stem in the leaf axils. Flowers are tubular flower with a white to pink corolla and long white hairs. There are usually purple dots on the lower lip and near the throat of the corolla. Flowers bloom for about 2 months during the summer.


Is skunk-vine native to the United States?