Does wild parsnip pose any ecological threat?

Pastinaca sativais native to Eurasia and occurs in sunny areas with varying degrees of soil moisture. Contact with this plant can cause skin to become photosensitive; exposure to sunlight can cause severe blistering. Be aware, poison hemlock and water hemlock are close in appearance and are often confused withPastinaca sativa. Poison hemlock has a mouse-like odor whilePastinaca sativahas a parsnip-like odor. Water hemlock prefers wet habitats whereasPastinaca sativaprefers dry soils.


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 growth habit of european frog-bit?


Is Pithecellobiumdulce(Roxb.) Benth. native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Thymelaeapasserina(L.) Coss. & Germ.?


Is sewer vine native to the United States?


What is the scientific name of indigobush?


Is field indian paintbrush native to the United States?


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


Is Prosopispallida(Humb. & Bonpl. ex Willd.) Kunth native to the United States?


What is the growth habit of Cenchrusalopecuroides(L.) Thunb.?


What is the growth habit of AlliumsativumL.?


Describe the appearance of MiconiacalvescensDC.?

Miconia calvescensis a perennial shrub or tree that can grow to 49.2 ft. (15 m) tall.


Where can I view images of Digitariainsularis(L.) Mez ex Ekman?


What is the common name of Euchitonjaponicus(Thunb.) A. Anderb.?


What is the growth habit of Imperatacylindrica(L.) Beauv.?


Does CelastrusorbiculatusThunb. pose any ecological threat?

Celastrus orbiculatusis commonly found in old home sites, fields, and road edges. The fast growing vines can cover, shade and outcompete other vegetation. It can even girdle and kill large trees. Birds and other wildlife eat the fruit, thus distributing the seeds. It hybridizes withCelastrus scandens, potentially leading to loss of genetic identity for the native species. It was introduced from China around 1860 as an ornamental.


Where can I view images of SyngoniumpodophyllumSchott?


What is the growth habit of whorled pennywort?


Is blue morning-glory native to the United States?


Is this plant invasive to the United States?


Does kahila garland-lily pose any ecological threat?

This plant forms clumps with deep matted roots. It is found in moist places. This plant is spread by people dumping garden waste, it is also spread by birds and by water run-off carrying seed and plant pieces. The best way to remove this plant is to dig it out.


What is the growth habit of Ludwigiapeploides(Kunth) Raven?


What is the scientific name of shrubby lespedeza?


Describe the appearance of ClematisternifloraDC?

Clematis terniflorais a climbing, semi-evergreen, ornamental vine.


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

Invasive (IPC) (Missouri), Prohibited (Wisconsin)


Where can I view images of river redgum?


What is the growth habit of salvation jane?


Describe the foliage of DipsacusfullonumL.?

Rosette leaves are lanceolate to oblanceolate and stem leaves are opposite, lanceolate and fused at the base. All leaves have short prickles on the midvein.


Describe the foliage of purple loosestrife?

The opposite or whorled leaves are dark-green, lance-shaped, sessile, 1.5-4 in. (3.8-10.2 cm) long and round or heart-shaped at the base.


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


Is Menthax villosaHuds. (pro sp.) [spicata × suaveolens] native to the United States?


What is the growth habit of princess-flower?


What is the growth habit of BerberisthunbergiiDC.?


What is the growth habit of BuddlejamadagascariensisLam.?


Where can I view images of uruguayan vervain?


Is GaleopsistetrahitL. native to the United States?


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


What is the common name of HelianthusciliarisDC.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Romulearoseavar. australis(Ewart) de Vos?


Does Hyacinthoideshispanica(Mill.) Rothm. pose any ecological threat?

Hyacinthoides hispanicacan be found in woodland edges, and in other disturbed areas. It is native to Spain, Portugal and Northwest Africa.


Is this plant invasive to the United States?


Does GalegaofficinalisL. pose any ecological threat?

Galega officinalisinvades wet, disturbed areas such as streambanks, low pastures and ditches. It can form dense thickets and is toxic to livestock.


Describe the foliage of woolly distaff thistle?

Stem leaves are alternate, pinnate, stiff, and covered in small hairs. Base of the leaves lack petioles and weakly clasp stems. Basal leaves are like the stem leaves but larger.


What is the scientific name of white bryony?


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


Is natal-plum native to the United States?


Is CarduuscrispusL. native to the United States?


What is the common name of LigustrumjaponicumThunb.?


Describe the flowers of Vitexagnus-castusL.?

Flowers are blue, lavender or white, about 1 in. (2.5 cm) across, five petals blunt at tip, arranged in spiral. It blooms in springtime.


Describe the fruit of squarrose knapweed?

Seeds are dispersed when the plant breaks off at the base and tumbles across the landscape dispersing seeds along the way.


Describe the fruit of Perillafrutescens(L.) Britton?

The sub-globose fruits are reticulate nutlets, grayish-brown, and are about 0.06 in. (1.5 mm) in diameter.


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


Where can I view images of thunberg's meadowsweet?


What is the growth habit of Parentucelliaviscosa(L.) Caruel?


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


Is spearleaf swampmallow native to the United States?


Is PortulacaoleraceaL. native to the United States?


Where can I view images of Brachypodiumsylvaticum(Huds.) Beauv.?


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


Where can I view images of red sesbania?


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


Where can I view images of Eichhorniacrassipes(Mart.) Solms?


What is the common name of CasuarinacunninghamianaMiq.?


Describe the fruit of creeping buttercup?

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.


Is winged burning bush native to the United States?


Is this plant invasive to the United States?


What is the common name of Polygonumspp.L.?


What is the common name of Marsileaspp.?


Cichorium intybusis a biennial to perennial herbaceous plant that can grow from 1-5 ft. (0.3-1.5 m) tall. It has erect, round, hollow, nearly leafless, green to reddish brown stems that produce a milky sap when cut. Lower part of stems are hairy. It is native to Africa, both temperate and tropical Asia and Europe.


Is TerminaliacatappaL. native to the United States?


What is the growth habit of skeletonleaf bursage?


What is the scientific name of cutleaf blackberry?


Is Linariadalmatica(L.) P. Mill. native to the United States?


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


Is bermudagrass native to the United States?


Describe the flowers of LepidiumlatifoliumL.?

Flowering occurs in the late spring to summer, when flat, dense clusters of flowers develop at the apex of the flowering stem. Individual flowers are 4-petaled and white.


What is the growth habit of HordeummurinumL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Lepyrodiclisholosteoides(C.A. Mey.) Fenzl ex Fisch. & C.A. Mey.?


What is the scientific name of japanese wisteria?


What is the growth habit of PlantagomajorL.?


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 LoniceramorrowiiGray?


Where can I view images of sycamore maple?


Mostly basal, nearly glabrous; blades V-shaped, narrow, 1-7 in. (2.5-17.8 cm) long, with boat-shaped tips and two prominent veins along the center of the upper surface of the leaf which appear as miniature railroad tracks.


What is the scientific name of bur chervil?


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


Is this plant invasive to the United States?


Does CardiospermumhalicacabumL. pose any ecological threat?

Cardiospermum halicacabumis a weed of disturbed ground, especially in wetland areas or riparian corridors. It has been introduced throughout the southern and southeastern United States.


What is the growth habit of Vincetoxicumspp.L.?


Where can I view images of narrow swordfern?


Describe the foliage of ChondrillajunceaL.?

Coarse-looking, multiple stems appear leafless due to inconspicuous leaves and arise from a basal rosette of sharply lobed leaves. The lower 4-6 in. (10.2-15.2 cm) of stem is covered with coarse brown hairs. Both stem and leaves produce a milky sap when broken.


Where can I view images of MyosotisscorpioidesL.?


What is the growth habit of GeraniumrobertianumL.?


Describe the fruit of Knautiaarvensis(L.) Coult.?

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.


The leaves are less than 3 in. (7.6 cm) long, alternate, simple, singly-serrate, and dark-green in color. Unlike most elms the leaf base is usually symmetrical.


Is CarduustenuiflorusW. Curtis native to the United States?


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


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

Invasive (IPC) (Missouri), Prohibited (Wisconsin)


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


Describe the fruit of AmbrosiatomentosaNutt.?

A. tomentosafruits are light brown burs with up to 10 short spines. They each contain 2 seeds.A. tomentosaalso reproduces vegetatively by sending shoots up from the horizontal root system.


What is the scientific name of bamboo orchid?


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


Where can I view images of LigustrumlucidumW.T. Aiton?


What is the common name of MimosadiplotrichaC. Wright ex Sauvalle?


This plant flowers year-round in southern Florida, but peaks during summer and early autumn.


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

Prohibited (Wisconsin), Tier 2 (Maryland)


Is this plant invasive to the United States?


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


Is pigeon pea native to the United States?


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

Potentially Invasive, Prohibited (Connecticut), Watch List (Michigan)


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


Is PrunusmahalebL. native to the United States?


What is the growth habit of Vincetoxicumrossicum(Kleopov) Barbarich?


What is the growth habit of Securigeravaria(L.) Lassen?


Does cape ivy pose any ecological threat?

Delairea odoratahas become an invasive species in California, Hawaii, Oregon, New Zealand and Australia. The plant will cover shrubs and trees, inhibiting growth and will also cover ground intensively over a wide area, thereby preventing seeds from germinating or growing. It is native to South Africa.


Is swordleaf rush native to the United States?


Describe the flowers of CentaureadiffusaLam.?

Flowering occurs from July to September. White flowers develop in urn-shaped heads, in clusters, at the ends of the branches. The heads are subtended by leathery bracts. The lower and middle bracts have brown margins with spines at the tips.


What is the growth habit of smooth hawksbeard?


Is giant salvinia native to the United States?


Is air-potato native to the United States?


What is the common name of Calocedrusdecurrens(Torr.) Florin?


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


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


Is this plant invasive to the United States?


Leaf blades are flat, covered with soft, distinct, thin hair, approximately 1-8 in. in length, and 1/32-1/16 of an in. wide. Sheaths are covered with dense, soft hairs. Ligules are 1/64-1/16 of an in. long and auricles are absent.


Is CardiospermumhalicacabumL. native to the United States?


What is the growth habit of PopulusalbaL.?


Describe the fruit of CuscutajaponicaChoisy?

Fruits are capsules that are ovoid and 0.2 in. (5 mm) in diameter. The seeds are brown and grouped with 1 to 3 seeds per capsule.


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


What is the scientific name of purple crown-vetch?


Where can I view images of Crataegusphaenopyrum(L. f.) Medik.?


Where can I view images of artilleryweed?


Does PlantagomajorL. pose any ecological threat?

Plantago majorcan be found throughout the United States, primarily a weed of turfgrass. It is native to Eurasia.


Describe the appearance of HieraciumpiloselloidesVill.?

Hieracium piloselloidesis an erect perennial, with a milky sap that can grow from 8-40 in. (20.3-101.6 cm) tall.


Is Digitariainsularis(L.) Mez ex Ekman native to the United States?


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


Does ArdisiacrenataSims pose any ecological threat?

Ardisia crenatathrives in shade and deep, rich soil, but can survive in any non-saturated soil. This plant is a native of Southeast Asia and was introduced into Florida as an ornamental around 1900. Readily invades hardwood hammocks and can form dense monocultures in the forest understory. Mature plants are usually surrounded by a blanket of seedlings. It has also been seen to invade scrub, sandhill, mesic flatwoods, hydric hammocks, bottomland forests, maritime ham-mocks, lake shores, and ruderal communities. (Wunderlin and Hansen 2004).


What is the growth habit of palay rubbervine?


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


What is the common name of LigustrumvulgareL.?


Is yellow daylily native to the United States?


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

Potentially Invasive, Prohibited (Connecticut)


What is the growth habit of LoniceraxylosteumL.?


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 smooth barley?


Describe the foliage of SisymbriumorientaleL.?

Oriental mustard produces a hairy, branching stem up to about 11.8 in. (30 cm) tall. The basal leaves are divided into deep lobes or toothed leaflets. Leaves higher on the stem have lance-shaped blades with small separate lobes near the base.


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


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


Leaves are long, flat and grow up to 1.5 ft. (0.5 m) long. They can be green or have variegated green and white stripes the length of the blade.


What is the common name of VerbenaincomptaP. W. Michael?


Describe the appearance of ChondrillajunceaL.?

Chondrilla junceais a perennial forb that can grow up to 4 ft. (1.2 m) tall.


What is the growth habit of queen anne's lace, wild carrot?


What is the common name of CatalpabignonioidesWalt.?


Is european beachgrass native to the United States?


What is the growth habit of field indian paintbrush?


Does Myriophyllumaquaticum(Vell.) Verdc. pose any ecological threat?

Myriophyllum aquaticum's potential range is yet to be determined. In more southern regions, this plant forms monocultures that clog waterways, impeding recreational and commercial boating activities. These monocultures also disrupt the growth of native aquatic plants and provide breeding areas for mosquitoes.Myriophyllum aquaticumis a common water garden plant, which has the potential to escape into local waterways. Control of this plant is extremely costly.


What is the scientific name of dandelion?

TaraxacumofficinaleG.H. Weber ex Wiggers


What is the growth habit of cabbage tree?


Is AlbiziajulibrissinDurazz. native to the United States?


Is Cupheacarthagenensis(Jacq.) J.F. Macbr. native to the United States?


Where can I view images of MomordicacharantiaL.?


Describe the foliage of SonchusarvensisL.?

Leaves are sessile, alternate, clasping, up to 12 in. (30.5 cm) long and decrease in size further up the stem, margins undulate with sharp spines.


Flowering occurs in the spring, when female flowers form in globose heads and male flowers develop in catkins.


What is the growth habit of RosabracteataJ.C. Wendl.?


Where can I view images of Mycelismuralis(L.) Dumort.?


Is redroot pigweed native to the United States?


Where can I view images of nightflowering catchfly?


What is the growth habit of RubusrosifoliusSm.?


Is this plant invasive to the United States?


What is the scientific name of yellow foxtail?

Setariapumila(Poir.) Roemer & J.A. Schultes


What is the common name of SolanumdiphyllumL.?


What is the growth habit of Malephoracrocea(Jacq.) Schwant.?


What is the growth habit of MiconiacalvescensDC.?


Is tall lodgepole pine native to the United States?


What is the growth habit of thymeleaf sandwort?


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

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.


What is the common name of SpiraeathunbergiiSieb. ex Blume?


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


Where can I view images of KoelreuteriapaniculataLaxm.?


What is the common name of Cotulaaustralis(Sieber) Hook. f.?


Where can I view images of Vincetoxicumrossicum(Kleopov) Barbarich?


Where can I view images of smallseed falseflax?


The wind dispersed seeds can spread the plant beyond landscaped areas. It also reproduces vegetatively by rhizomes.


Flowering occurs in the late summer. The small, salmon-colored flowers develop in umbels.


Is SaginaprocumbensL. native to the United States?


What is the growth habit of CentaureasolstitialisL.?


What is the growth habit of ReynoutriajaponicaSieb. & Zucc.?


Where can I view images of EricacinereaL.?


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


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


What is the growth habit of dallisgrass?


What is the scientific name of white leadtree?


Describe the foliage of GlechomahederaceaL.?

Leaves are opposite, heart shaped, 0.8-1.2 in. (2-3 cm) wide, petiolate and scalloped.


Is this plant invasive to the United States?


Describe the fruit of CentaureaibericaTrev. ex Spreng?

Seeds are plumed, the distinguishing factor between this plant and purple starthistle.


Describe the appearance of BromustectorumL.?

Bromus tectorumis an erect-stemmed annual grass that grows to about 8-25 in. (20-70 cm) in height.


Describe the appearance of tawny daylily?

Hemerocallis fulvais a bulbous perennial, 2-4 ft. (0.6-1.2 m) tall with round stems. Buds and flowers are edible and have a sweet-spicy or peppery flavor.


What is the growth habit of cultivated knotweed?


What is the growth habit of CinchonapubescensVahl?


What is the growth habit of scarlet pimpernel?


Where can I view images of BischofiajavanicaBlume?


What is the common name of Fraxinusuhdei(Wenzig) Lingelsh?


What is the scientific name of kentucky bluegrass?


What is the growth habit of siberian peashrub?


What is the growth habit of PrunuslaurocerasusL.?


What is the common name of MaluspumilaP. Mill.?


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


What is the scientific name of clasping pepperweed?


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


What is the growth habit of asiatic pennywort?


Is Malusbaccata(L.) Borkh. native to the United States?


What is the scientific name of golden bamboo?

PhyllostachysaureaCarr. ex A.& C. Rivière


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 scientific name of slender speedwell?


Is SilenenoctifloraL. native to the United States?


What is the common name of Helminthothecaechioides(L.) Holub?


What is the growth habit of CestrumdiurnumL.?


Describe the foliage of LantanacamaraL.?

Leaves are ovate and opposite along the square stem. Stems and leaves emit an unpleasant “spicy” smell when crushed.


Is PinusponderosaP.& C. Lawson native to the United States?


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


Describe the appearance of Triadicasebifera(L.) Small?

Triadica sebiferais a deciduous tree reaching 60 ft. (18.3 m) in height and 3 ft. (0.9 m) in diameter.


What is the growth habit of Setariaviridis(L.) Beauv.?


Where can I view images of SalixbabylonicaL.?


What is the U.S. Department of Agriculture (USDA) plant symbol for Schismusbarbatus(Loefl. ex L.) Thellung?


What is the scientific name of anglestem beaksedge?


What is the scientific name of sydney golden wattle?


Describe the fruit of PyruscalleryanaDecne.?

Fruits are round, 0.5 in. (1.3 cm) in diameter and green to brown in color.


What is the scientific name of smallflower tamarisk?


What is the scientific name of korean lespedeza?


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 growth habit of sweet autumn virginsbower?


What is the common name of SpathodeacampanulataBeauv.?


What is the common name of Rorippasylvestris(L.) Bess.?


What is the scientific name of malfurada?


What is the common name of Pinuscontortavar. latifoliaEngelm. ex S. Watson?


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


What is the scientific name of smooth hawksbeard?


Is CommelinacommunisL. native to the United States?


What is the growth habit of Tithoniadiversifolia(Hemsl.) Gray?


Is this plant invasive to the United States?


What is the growth habit of Knautiaarvensis(L.) Coult.?


Is BerberisdarwiniiHook. native to the United States?


Is AlopecurusmyosuroidesHuds. native to the United States?


What is the scientific name of oppositeleaf russian thistle?


Is sudangrass native to the United States?


Is corn buttercup native to the United States?


Where can I view images of MelinisminutifloraBeauv.?


Is coltsfoot native to the United States?


What is the common name of HelichrysumpetiolareHilliard & Burtt?


Is MalvasylvestrisL. native to the United States?


Where can I view images of Carissamacrocarpa(Ecklon) A. DC.?


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


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


Where can I view images of common chickweed?


Where can I view images of kentucky bluegrass?


Is sycamore maple native to the United States?


The white flowers ofLigustrum obtusifoliumare unpleasantly scented and are borne in nodding panicles that measure 0.75-1.5 in. (2-2.5 cm) long. The flowers appear on the plant in June.


What is the common name of VerbenamontevidensisSpreng.?


What is the growth habit of LamiumpurpureumL.?


Describe the foliage of purple nutsedge?

The leaves are three-ranked, shiny, dark green, and corrugated in cross section. They are 0.24-0.39 in. (6-10 mm) wide and 3.9-13.8 in. (10-35 cm) long. The rachis, which grows through the center of the leaf bundle, is erect, simple, smooth, triangular in cross section, and 3.9-23.6 in. (10-60 cm) long.


Does chinese silvergrass pose any ecological threat?

Miscanthus sinensisescapes from ornamental plantings and can form large clumps along disturbed areas, displacing native vegetation. The grass is also extremely flammable and increases fire risks of invaded areas. It is native to Asia and was introduced into the United States for ornamental purposes during the late 1800s.


What is the scientific name of earleaf acacia?

AcaciaauriculiformisA. Cunningham ex Benth.


What is the growth habit of giant sensitiveplant?


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


Is this plant invasive to the United States?


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


Describe the foliage of Dittrichiagraveolens(L.) W. Greuter?

Leaves are alternate, linear, oblong, 0.79-3.9 in. (2-10 cm) long, and soft with entire margins, acute tips, and hairy edges.


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


Where can I view images of Sorghumbicolorssp. drummondii(Nees ex Steud.) de Wet & Harlan?


Describe the flowers of EpilobiumhirsutumL.?

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.


Describe the appearance of Glyceriamaxima(Hartman) Holmb.?

Glyceria maximais a perennial, semi-aquatic, rhizomatous grass. Stems are unbranched and can reach 2-8.2 ft. (0.6-2.5 m) in height.


What is the growth habit of StachysfloridanaShuttlw. ex Benth.?


Where can I view images of palay rubbervine?


Miconia calvescensis a perennial shrub or tree that can grow to 49.2 ft. (15 m) tall.


Where can I view images of RubusidaeusL.?


What is the scientific name of finestem needlegrass?


Is trumpet tree native to the United States?


What is the scientific name of common comfrey?


What is the common name of ArumitalicumP. Mill.?


Is crowndaisy native to the United States?


Is golden bamboo native to the United States?


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


Is eastern white pine native to the United States?


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


What is the scientific name of caesarweed?


Where can I view images of Piceaabies(L.) Karst.?


Describe the fruit of Cenchruslongispinus(Hack.) Fern?

Fruits are contained in the spiny burs held along the terminal panicle. Each bur is somewhat hairy and is approximately 0.2-0.3 in. (5-7 mm) wide.


What is the common name of NicotianaglaucaGraham?


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


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

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


What is the common name of Heterocentronsubtriplinervium(Link & Otto) A. Braun & Bouché?


What is the growth habit of Lantanamontevidensis(Spreng.) Briq.?


What is the scientific name of soft brome?


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


What is the growth habit of TrifoliumincarnatumL.?


What is the common name of MalusfloribundaSieb. Ex Van Houtte?


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 night jessamine native to the United States?


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


Is golden bellapple native to the United States?


What is the scientific name of cordgrass hybrid?


Is mediterranean sage native to the United States?


What is the growth habit of subterranean clover?


What is the common name of Rhodomyrtustomentosa(Ait.) Hassk.?


What is the scientific name of thunberg's geranium?

GeraniumthunbergiiSieb. & Zucc. ex Lindl. & Paxton


The simple lobed leaves are papery, pubescent, and dark green on the upper surface. Leaves are alternate. The leaves near the base are elliptic and oblong, lobed deeply almost to the midrib. The leaves midstem are elliptic to ovate, 1.2-4 in (3-10 cm) long by 0.6-2.4 in (1.5-6 cm) wide and lobed pinnately or bipinnately. Leaf margins may be serrate.


What is the growth habit of Ludwigiaperuviana(L.) Hara?


Turions (stem tubers) are bud-like structures which can drop off the plant and successfully survive freezing or drought. Tubers from the rhizomes are another way these plants reproduce and increase their invasive potential.


What is the common name of Paraseriantheslophantha(Willd.) I. Nielsen?


What is the scientific name of fuzzy pride-of-rochester?


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


Describe the foliage of PistiastratiotesL.?

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


Imperata cylindricais best identified in the spring by the large fuzzy panicle of flowers and seeds, giving the plant a cottony or silky look.


What is the growth habit of Verbesinaencelioides(Cav.) Benth. & Hook. f. ex Gray?


What is the growth habit of Kummerowiastriata(Thunb.) Schindl.?


Is chinese pistache native to the United States?


What is the scientific name of herbaceous glorytree?


What is the scientific name of common hempnettle?


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


Is common hempnettle native to the United States?


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


Does yellow sweet-clover pose any ecological threat?

Melilotus albacan be found in prairies, fields, vacant lots, along roadsides, and in waste lands. It is native to Europe and Asia.


What is the common name of Erechtiteshieraciifolius(L.) Raf. ex DC.?


What is the common name of Callistemonviminalis(Gaertn.)G.Don ex Loudon?


Describe the foliage of ElaeagnusangustifoliaL.?

The leaves are simple, alternate and lanceolate to oblong-lanceolate. They are 1-4 in. (3-10 cm) long and have silver scales on both sides.


What is the scientific name of himalayan blackberry?


Describe the foliage of NandinadomesticaThunb.?

Leaves are alternate, large, bi- or tri-pinnately compound with small, 1-2 in. (2.5-5.1 cm) long leaflets. The older stems have bark with long, linear furrows. The overlapping leaf sheaths give the main stem the appearance of bamboo, hence the name.


Is this plant invasive to the United States?


What is the invasive/noxious status of Spiraeajaponicavar. fortunei(Planch.) Rehder and where is it classified as such?


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

Potentially Invasive, Prohibited (Connecticut), Watch List (Michigan)


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


Is douglas-fir native to the United States?


Describe the flowers of SalsolacollinaPallas?

Flowers are small, green-white or pink in color.


What is the growth habit of HydrocotyleverticillataThunb.?


What is the growth habit of japanese honeysuckle?


Where can I view images of ladder brake?


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


What is the common name of Sennaseptemtrionalis(Viviani) Irwin & Barneby?


Fruits are black with a fleshy outer layer and stone-like seeds. New plants grow easily from cuttings or stem fragments that make contact with the soil.


What is the common name of LepidiumperfoliatumL.?


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


Where can I view images of Furcraeafoetida(L.) Haw?


Where can I view images of GypsophilapaniculataL.?


What is the growth habit of japanese netvein hollyfern?


What is the growth habit of IsatistinctoriaL.?


Is this plant invasive to the United States?


Citrusx sinensis(L.) Osbeck (pro sp.) [maxima × reticulata]


Is goosegrass native to the United States?


Is dog rose native to the United States?


Where can I view images of PotentillarectaL.?


Where can I view images of VeronicapersicaPoir.?


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


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


What is the growth habit of fivestamen tamarisk?


Does common ragweed pose any ecological threat?

This plant is common throughout the United States and causes hay fever in many people. It is commonly found along ditches and waste areas. It is not highly competitive in crops or rangeland. Native to all U.S. states except Hawaii and Alaska.


Where can I view images of japanese barberry?


The leaves are spatula shaped and simple with entire margins. Leaves are opposite with two leaves per node along the stem.


What is the growth habit of hairy indian mallow?


What is the common name of CyperusesculentusL.?


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 fruit of japanese wisteria?

Seeds are contained within brown, hairy, flattened, bean-like pods. Although seeds are viable, vegetative growth is the primary method of spread for this invasive.


Describe the appearance of ElaeagnusumbellataThunb.?

Elaeagnus umbellatais a deciduous shrub from 3-20 ft. (0.9-6.1 m) in height with thorny branches. It is easily recognized by the silvery, dotted underside of the leaves.


Describe the foliage of birdsfoot trefoil?

Leaves are compound (with 5 oval to linear leaflets), stipulate and alternate. Leaflets (upper 3) are 0.5 in. (1.3 cm) long and less than 0.13 in. (0.3 cm) wide; the lower two resemble leaf-like stipules. Flowering occurs from May to August, when yellow, sweet pea-like flowers develop.


Describe the flowers of tussock paspalum?

Flowers are produced in 15-25, 2.4-3.1 in. (6-8 cm) long racemes per plant.


What is the common name of MangiferaindicaL.?


Where can I view images of Setariapalmifolia(Koenig) Stapf?


Is this plant invasive to the United States?


Describe the appearance of sericea lespedeza?

Lespedeza cuneatais an upright semi-woody forb reaching 3-6 ft. (0.9-1.8 m) in height with one to many slender stems. Stems are often gray green with lines of hairs along the stem.


What is the common name of Coincyamonensis(L.) Greuter & Burdet?


Where can I view images of Campsisradicans(L.) Seem. ex Bureau?


What is the scientific name of slender snakecotton?


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


Where can I view images of striated broom?


Describe the appearance of european black alder?

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


Where can I view images of Crocosmiax crocosmiiflora(V. Lemoine) N.E. Br. [aurea × pottsii]?


Where can I view images of everlasting peavine?


What is the common name of LantanacamaraL.?


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


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


Where can I view images of ElaeagnusumbellataThunb.?


Is MarsileaquadrifoliaL. native to the United States?


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


Where can I view images of Phlebodiumaureum(L.) J. Sm.?


What is the scientific name of japanese callicarpa?


What is the scientific name of lombardy poplar?


Is ovate goatgrass native to the United States?


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


Describe the fruit of halogeton, saltlover?

Halogeton glomeratusproduces two types of seeds. Seed produced in the early summer are light tan and wingless; seeds produced in the late summer are dark brown and winged.


Describe the appearance of DaphnelaureolaL.?

Daphne laureolais an evergreen shrub that can grow from 2-4 ft. (0.61-1.2 m) tall.


Describe the foliage of malta starthistle?

Leaves are alternate, linear or narrowly oblong with smooth, toothed margins. Leaf bases are decurrent and give the stems a winged appearance.


Does balloonvine pose any ecological threat?

Cardiospermum halicacabumis a weed of disturbed ground, especially in wetland areas or riparian corridors. It has been introduced throughout the southern and southeastern United States.


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


Is Malephoracrocea(Jacq.) Schwant. native to the United States?


Where can I view images of UlmusproceraSalisb.?


Where can I view images of Bellardiatrixago(L.) All?


Describe the fruit of CentaureadiffusaLam.?

Seeds are achenes, 0.08-0.12 in. (2-3 mm) long with a plume of bristle-like hairs.


What is the growth habit of herb bennet?


Describe the foliage of TamarixgallicaL.?

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.


Is this plant invasive to the United States?


Is clasping heliotrope native to the United States?


What is the scientific name of colocynth?


Is PinuspinasterSoland., non Ait. native to the United States?


Is GeraniumthunbergiiSieb. & Zucc. ex Lindl. & Paxton native to the United States?


AnAcacia auriculiformistree can produce about 47,000 seeds a year. The fruits are flat, oblong pods. Pods become twisted as they mature and then split to reveal flat black seeds. The seeds are attached by orange, string like arils.


Describe the appearance of chinese silvergrass?

Miscanthus sinensisis a tall, up to 12 ft. (3.7 m), densely-bunched grass that invades roadsides, forest edges, old fields, and other disturbed areas throughout the United States.


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


Describe the foliage of cheatgrass, downy brome?

The leaf sheaths and blades are covered with soft short hairs. The leaves are 0.08-0.16 in. (2-4 mm) wide and up to 8 in. (20 cm) long. Its ligules are 0.04-0.1 in. (1-2.5 mm) long.


What is the U.S. Department of Agriculture (USDA) plant symbol for alpine knapweed, tyrol knapweed?


Describe the flowers of russian knapweed?

In summer to fallRhaponticum repensproduces flowers that are pink to purple and turn straw colored as they mature. The flower heads are approximately 0.5 in (1.2 cm) in diameter and urn shaped.


Does japanese black pine pose any ecological threat?

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


Where can I view images of nodding beggarticks?


Limnophila sessiliflorais a rooted, aquatic, perennial, herbaceous plant that grows up to 12 ft (3.7 m) tall. It is fast growing, grows new plants from fragments, and can exist in a variety of aquatic habitats.


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 pitted morning-glory?


What is the scientific name of venice mallow?


What is the common name of CotoneasterfranchetiiBoiss.?


Describe the foliage of SpiraeajaponicaL. f.?

The alternate leaves are oval to lance shaped, toothed along the margins and 1-3 in. (2.5-7.6 cm) long.


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


Describe the flowers of Anthriscussylvestris(L.) Hoffmann?

The umbels of this plant are large, having 6-15 rays that can reach up to 1.5 in. (4 cm) in length. Each of the bractlets is lance-ovate in shape and measures 0.1-0.25 in. (3-6 mm) in length. The flowers are white and have 5 notched petals.Anthriscus sylvestrisblooms from May to June.


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


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


What is the U.S. Department of Agriculture (USDA) plant symbol for coco yam, wild taro?


Describe the fruit of common water hyacinth?

This plant reproduces chiefly by vegetative means.


Is this plant invasive to the United States?


Is sprenger's asparagus fern native to the United States?


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


Is SolanumphysalifoliumRusby native to the United States?


What is the scientific name of japanese chaff flower?


Describe the flowers of ElaeagnusangustifoliaL.?

The fragrant flowers are 0.5-0.6 in. (1.2-1.5 cm) wide, silvery outside and yellow within. There are 1-3 flowers within the leaf axils. They appear in May to June.


Is ConvallariamajalisL. native to the United States?


Describe the fruit of Epipactishelleborine(L.) Crantz?

Fruit are capsule that are egg-shaped to ellipsoid, green with brownish lines, up to 0.6 in. (1.5 cm) long, and generally hairy.


Describe the appearance of TamarixparvifloraDC.?

Tamarix parviflorais deciduous shrub that can grow up to 15 ft. (4.8 m) in height.


What is the scientific name of giant knotweed?

ReynoutriasachalinensisF. Schmidt ex Maxim.


Is Bellardiatrixago(L.) All native to the United States?


What is the growth habit of fuzzy pride-of-rochester?


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


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


What is the common name of Elsholtziaciliata(Thunb.) Hyl.?


Where can I view images of Vitexagnus-castusL.?


Where can I view images of st. augustinegrass?


Where can I view images of yellow bedstraw?


Describe the appearance of saltmeadow cordgrass?

Spartina patensis a tufted perennial warm season grass, (family Poaceae) that grows from 1-4 ft. (0.25-1.22 m) in height. The rhizomatous roots help to spread this species.S. patensis native to the southeastern coast of North America and can be seen growing in brackish marshes, low dunes, sand flats, beaches and high salt marshes.


Describe the appearance of perennial pepperweed?

Lepidium latifoliumis a perennial that can grow from 1-5 ft. (0.3-1.5 m) in height. In the late fall to early spring a rosette of leaves develops with 4-12 in. (10-30 cm) long and 1-2 in. (2.5-5 cm) wide, toothed leaves. Plants emerge from thick, minimally branched roots or semi-woody crowns. Individuals remain as a rosette for several weeks before the stem elongates.


What is the invasive/noxious status of Lygodiummicrophyllum(Cav.) R. Br. and where is it classified as such?

Class A (Alabama), Invasive (North Carolina), Noxious (United States)


Where can I view images of common crupina?


Is this plant invasive to the United States?


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


Describe the fruit of FicariavernaHuds.?

The fruit are achenes that are pubescent. It also reproduces with bulblets and tubers.


The fragrant yellow flowers are borne in loose terminal racemes, unlike those ofCytisus scopariuswhich are usually solitary in the axils. Individual flowers are 0.8-1 in. (2-2.5 cm) long.


Describe the appearance of PotamogetoncrispusL.?

Potamogeton crispusis a perennial, submerged, aquatic herb that is native to Eurasia.


Describe the foliage of queen-devil hawkweed?

The leaves have very short simple hairs, which give the leaves and the lower part of stems a soft-lanuginose (downy/wooly) appearance. Leaves have somewhat numerous stellate hairs on the upper surface of leaves. Leaves are oblong-spatulate to lanceolate and up to about 7 in. (18 cm) long.


Is LoniceramorrowiiGray native to the United States?


What is the scientific name of apple-of-peru?


What is the growth habit of showy fly honeysuckle, bell's honeysuckle?


What is the growth habit of largeleaf lantana?


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


What is the common name of EucalyptustereticornisSm.?


Where can I view images of Dactylocteniumaegyptium(L.) Willd?


Is AcerplatanoidesL. native to the United States?


Where can I view images of garlic mustard?


What is the common name of SchinusterebinthifoliaRaddi?


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


Describe the fruit of Paulowniatomentosa(Thunb.) Sieb. & Zucc. ex Steud.?

Fruits (1-2 in. [2.5-5.1 cm] long, 1-1.5 in. [2.5-3.8 cm] wide) are egg-shaped capsules, divided into 4 inner compartments that contain the seeds. Fruits are light green in the summer, becoming dark brown in the winter, and persist in clusters on the tree until the following spring. The capsules split in half during late winter to release up to 2000 tiny winged, wind-borne seeds 0.08-0.12 in. (2-3 mm).


Is this plant invasive to the United States?


What is the scientific name of juniper berry?


Does black knapweed pose any ecological threat?

Centaurea nigrais native to Europe and was first found in the United States in 1895 in Pullman, Washington. Preferred habitat includes roadsides, waste places, fields and clearings.


Where can I view images of white willow?


Describe the appearance of mediterranean clone of caulerpa?

Caulerpa taxifoliais an invasive marine alga that is often referred to as "Killer Algae".


Does Reynoutriax bohemicaChrtek & Chrtková pose any ecological threat?

Fallopia x bohemicaprefers disturbed areas such as fields, pastures, and along roadsides and railways. It is native to Japan.


Is diffuse knapweed native to the United States?


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


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


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

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


Where can I view images of HibiscussyriacusL.?


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


Where can I view images of moth mullein?


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


What is the growth habit of TanacetumvulgareL.?


What is the growth habit of field horsetail?


What is the growth habit of passionflower?


What is the common name of Araliaelata(Miq.) Seem?


What is the scientific name of eggleaf spurge?


Is this plant invasive to the United States?

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


Describe the appearance of black henbane?

Hyoscyamus nigeris an annual or biennial plant that can grow to 3 ft. (1 m) in height.


Where can I view images of east indian almond?


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


Where can I view images of Silybummarianum(L.) Gaertn.?


Describe the appearance of mile-a-minute vine, asiatic tearthumb?

Persicaria perfoliatais an herbaceous, annual vine that invades disturbed areas in Oregon and portions of the northeastern United States. The delicate stems are reddish, highly branched and covered with small, curved spines. Circular, leafy structures (ocreae) surround the stem at the base of the petioles.


Describe the fruit of AtriplexsemibaccataR. Br.?

Fruits are 0.16-0.24 in. (4-6 mm) long, sessile, diamond-shaped, and red when mature. Seeds are black and 0.06-0.07 in. (1.5 -1.7 mm) long.


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


What is the growth habit of garden vetch?


What is the growth habit of Solidagocanadensisvar. scabraTorr. & Gray?


Is Leontodontaraxacoidesssp. taraxacoidesL. native to the United States?


What is the scientific name of snowbush?


What is the common name of Mimosapudicavar. unijuga(Duchass. & Walp.) Griseb.?


Is thunberg's meadowsweet native to the United States?


Describe the fruit of Melilotusofficinalis(L.) Lam.?

Seed pods are smooth or slightly reticulated, 0.3 in. (0.85 cm) long, terminates in a beak, and contains 1 or 2 seeds.


Does brown knapweed pose any ecological threat?

Centaurea jaceais an aggressive invader preferring moister, cooler conditions than other knapweed species. It can tolerate partial shade. It can invade grasslands, open woods, meadows, pastures, woodland clearings, and cutover areas of forest crowding out native plants or forage.Centaurea jaceais native to Europe.


Is uruguayan vervain native to the United States?


Is rock rose native to the United States?


What is the common name of SolanumaviculareG. Forst.?


Is garlic mustard native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for woman's tongue tree?


What is the common name of MenthaX rotundifolia(L.) Huds. (pro. sp.)?


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


What is the growth habit of five-leaf aralia?


Is this plant invasive to the United States?


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


Is swainsonpea native to the United States?


Is giant reed native to the United States?


Is AldrovandavesiculosaL. native to the United States?


What is the scientific name of pennyroyal?


What is the growth habit of Ceratocephalatesticulata(Crantz) Bess.?


What is the common name of Euphorbiaesulavar. esulaL.?


Describe the fruit of IsatistinctoriaL.?

Seed pods are black or purplish, flattened, 0.4 in. (0.9 cm) long, 0.25 in. (0.6 cm) wide and hang from short stalks at the ends of the stems.


What is the common name of PyruscommunisL.?


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


Is cinnamon rose native to the United States?


Describe the flowers of EuphorbiacyparissiasL.?

Yellow-green, inconspicuous flowers are in a cyme at the top of the plant. Flowers mature to red.


What is the scientific name of australasian geranium?


Where can I view images of common coleus?


What is the common name of Cyrtomiumfalcatum(L. f.) C. Presl?


Is portugal laurel native to the United States?


Is Lepidiumdensiflorumvar. densiflorumSchrad. native to the United States?


Where can I view images of TagetesminutaL.?


Is MyosotisdiscolorPers. native to the United States?


Is IlexcrenataThunb. native to the United States?


Is this plant invasive to the United States?


What is the common name of Eucalyptussalicifolia(Sol.) Cav.?


What is the growth habit of Livistonachinensis(Jacq.) R. Br. ex Mart.?


What is the growth habit of MenthapulegiumL.?


Is StachysfloridanaShuttlw. ex Benth. native to the United States?


What is the growth habit of SalixpurpureaL.?


Where can I view images of florida betony?


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


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


What is the scientific name of parrotfeather?


What is the growth habit of PeganumharmalaL.?


What is the scientific name of japanese cedar?


What is the scientific name of spiny cocklebur?


What is the common name of ArdisiaellipticaThunb?


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


What is the U.S. Department of Agriculture (USDA) plant symbol for Heterocentronsubtriplinervium(Link & Otto) A. Braun & Bouché?


Describe the fruit of EuphorbiacyparissiasL.?

The fruit is three lobed and contains 1-3 egg shaped smooth gray seeds that measure 0.06-0.08 in. (1.5-2 mm).Euphorbia cyparissiasproduces large clonal colonies through an extensive underground root system, that allows this plant to reproduce with lateral root buds.


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


Is dog-strangling vine, european swallowwort native to the United States?


Is this plant invasive to the United States?


Describe the foliage of LythrumsalicariaL.?

The opposite or whorled leaves are dark-green, lance-shaped, sessile, 1.5-4 in. (3.8-10.2 cm) long and round or heart-shaped at the base.


Fruits are five chambered capsules that, when mature, explode expelling seeds forcefully. Each plant produces about 800 seeds.


What is the scientific name of yellow nutsedge?


Describe the fruit of GlechomahederaceaL.?

Fruits are egg shaped, brown, and 0.04 in. (1 mm) long.


What is the scientific name of asian swordfern?

Nephrolepisbrownii(Desv.) Hovenkamp & Miyam.


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


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


Describe the appearance of CabombacarolinianaA. Gray?

Cabomba carolinianais a perennial submersed aquatic plant that is native to the southeastern United States. It has become an invasive problem in parts of the United States where it is not native. It can grow in water 3-10 ft. (0.9-3 m) deep with stems up to 6.5 ft. (2 m) long.


Is IrispseudacorusL. native to the United States?


Describe the appearance of Leucaenaleucocephala(Lam.) de Wit?

Leucaena leucocephalais a shrub or small tree that can grow up to 16 ft. (5 m) in height.


Describe the fruit of OnopordumacanthiumL.?

The seeds of this plant are 0.2 in. (4-5 mm) long. They are gray in color, and attached to a brown-colored pappus that can be two times as long as the seed.


Where can I view images of Limnobiumspongia(Bosc) L.C. Rich. ex Steud.?


Is brazilian jasmine native to the United States?


What is the growth habit of Tripidiumravennaessp. ravennae(L.) H. Scholz?


What is the scientific name of alyceclover?


Is Callunavulgaris(L.) Hull native to the United States?


Where can I view images of lilac chastetree?


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


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


What is the invasive/noxious status of woodland forget-me-not and where is it classified as such?


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


Leaves are pinnately compound, linear, 6-12 in. (15.2-30.5 cm) long with 2.5 in. (6.4 cm) long, sessile, lanceolate to linear, entire leaflets.


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 scientific name of autumn olive?


Is LoniceratataricaL. native to the United States?


What is the common name of TamarixgallicaL.?


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


Is sugargum native to the United States?


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


What is the growth habit of aaron's beard?


Describe the foliage of CabombacarolinianaA. Gray?

Cabomba carolinianahas two types of leaves. The submerged leaves are opposite, fan-shaped, deeply dissected and about 2 in. (5 cm) wide. The small floating leaves are entire and linear elliptic in shape.


Does golden bamboo 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.


Describe the foliage of HypericumcanarienseL.?

Leaves are lanceolate, waxy, opposite, with a prominent midvein and green coloring through winter and orange during summer before they fall off.


What is the scientific name of ponderosa pine?


What is the invasive/noxious status of Achyranthesjaponica(Miq.) Nakai and where is it classified as such?

Invasive (IPC) (Missouri), Prohibited (New York), Prohibited (Wisconsin), Watch List (Alabama), Watch List (Michigan)


Is tumble mustard native to the United States?


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


Describe the foliage of smooth bedstraw?

The leaves are simple and margins are entire. Leaves are whorled around the stem with three or more leaves per node along the stem.


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


Describe the fruit of woolly distaff thistle?

Fruit is brown, oblong, 0.16-0.24 in. (4-6 mm) long, and notched near the base. Seeds are brownish in color, narrow, and 0.4-0.5 in. (10-13 mm) long.


Describe the appearance of FoeniculumvulgareP. Mill.?

Foeniculum vulgareis a perennial with soft, feathery, almost hair-like foliage growing up to 6.6 ft. (2 m) tall. This plant can look similar to dill.


Is this plant invasive to the United States?


Is corkystemmed passionflower native to the United States?


What is the growth habit of EpilobiumhirsutumL.?


What is the growth habit of Abutilongrandifolium(Willd.) Sweet?


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


What is the common name of BidenscernuaL?


Is Bassiahyssopifolia(Pallas) Kuntz native to the United States?


Where can I view images of LonicerafragrantissimaLindl. & Paxton?


What is the growth habit of tropic ageratum?


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


What is the growth habit of Alliariapetiolata(Bieb.) Cavara & Grande?


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


What is the scientific name of redosier dogwood?


Where can I view images of Bassiahyssopifolia(Pallas) Kuntz?


Describe the foliage of fragrant waterlily?

Leaves are round, narrowly cut almost to the center, 10 in. (25.4 cm) across, and bright green on top and the underside is reddish or purplish.


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


What is the scientific name of white-flowered spiderwort?


What is the common name of Oleaeuropaeassp. cuspidata(Wall. ex G. Don) Ciferri?


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

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


Is this plant invasive to the United States?


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


Describe the appearance of ClematisvitalbaL.?

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


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


Describe the flowers of small carpetgrass, joint-head grass?

Flowers bloom in early fall and are contained in 1 to several, 1-3 in. (2.5-7.6 cm) long spikes.


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


Where can I view images of little mallow?


What is the growth habit of IpomoeaaquaticaForssk.?


What is the common name of DioscoreabulbiferaL.?


What is the growth habit of silverleaf nightshade?


Describe the flowers of yellow bluestem?

The inflorescence ofB. ischaemumis a terminal, subdigitate panicle that is purplish in color and has 2 to 10 racemes that are 1-3.5 in. (2.5-9 cm) long. Spikelets are in pairs with one sessile and perfect and the other pedicellate and sterile. The perfect flower is 0.12-0.18 in. (3-4.6 mm) long and ovate. The blooming period occurs in mid summer.


The white flowers are arranged in umbels that are 2.25-4.75 in. (6-12 cm) in diameter. Each umbel is borne on a long peduncle, and has 15-25 rays that are about 1 in. (2.5 cm) or more in length. The flowers ofAegopodium podagrariaappear in June.


Where can I view images of centipede tongavine?


Describe the fruit of japanese chaff flower?

The fruits are elliptic utricles that are held tightly along the stem. Fruits contain a single seed and each plant produces many seeds. Each fruit has a pair of stiff bracts that can attach to fur or clothing, allowing the seed to be easily spread.


Where can I view images of ripgut brome?


Describe the fruit of ImpatiensglanduliferaRoyle?

Fruits are five chambered capsules that, when mature, explode expelling seeds forcefully. Each plant produces about 800 seeds.


Where can I view images of Epipremnumpinnatum(L.) Engl?


Is canary island st. johnswort native to the United States?


Does GeraniumlucidumL. pose any ecological threat?

Geranium lucidumgrows in the Pacific Northwest predominantly as an understory species intermixed with grasses, forbs and moss.


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 ArtemisiaabsinthiumL. pose any ecological threat?

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


Where can I view images of jerusalem artichoke?


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


Is dwarf eelgrass native to the United States?


Is Alnusglutinosa(L.) Gaertn. native to the United States?


What is the common name of XanthiumspinosumL.?


The fruit is a capsule that contains several small seeds.


Is Merremiatuberosa(L.) Rendle native to the United States?


Is Carpobrotusedulis(L.) N.E. Br native to the United States?


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


Is evergreen bugloss native to the United States?


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


What is the growth habit of sticky sage?


What is the scientific name of algerian sea lavender?


What is the growth habit of LigustrumobtusifoliumSieb. & Zucc.?


Is Angiopterisevecta(J.R. Forst.) Hoffmann native to the United States?


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


Is this plant invasive to the United States?


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

Cinnamomum camphorais a broad-leaved, evergreen tree that grows 50-100 ft. (15-30 m) tall.


Is MesembryanthemumcrystallinumL. native to the United States?


What is the scientific name of woolly distaff thistle?


What is the growth habit of CrataegusmonogynaJacq.?


Where can I view images of Pseudognaphaliumluteoalbum(L.) Hilliard & Burtt?


What is the common name of PistaciachinensisBunge?


Describe the flowers of Ludwigiapeploides(Kunth) Raven?

L. peploideshas solitary flowers are held on stems arising from the upper leaf axils. Stems can be floating or lying on the ground. Flowers have five bright notched yellow petals, 0.4-0.6 in. (1-1.5 cm) long.


What is the scientific name of water chestnut?


What is the growth habit of LoniceramorrowiiGray?


Describe the flowers of RosarugosaThunb.?

Flowers usually solitary or few together, 2.4-3.5 in (6–9 cm) across and fragrant. The five petals vary in color from bright purplish-pink to white. There are 200–250 stamens per flower, and usually more than a hundred styles.


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


What is the growth habit of smallseed alfalfa dodder?


Where can I view images of Costusspeciosus(Koenig) Sm.?


Does mile-a-minute vine, asiatic tearthumb pose any ecological threat?

Persicaria perfoliatainvades open disturbed areas such as fields, forest edges, roadsides, ditches and stream banks. Its rapid growth allows it to cover existing vegetation and restrict light availability, potentially killing plants below. Dense mats ofPersicaria perfoliatacan also restrict establishment of new vegetation. It is native to Eastern Asia and the Philippines and was introduced several times into the United States from the late 1800s to the 1930s.


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


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


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


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


Does ErigeroncanadensisL. pose any ecological threat?

E. canadensis, Canadian horseweed is common in grasslands and in moist disturbed sites including riparian and wetland areas. It has become a common pest in agricultural locations throughout its range. This plant has become an invasive weed in Eurasia.


What is the scientific name of balloonvine?


Describe the foliage of Lespedezacuneata(Dum.-Cours.) G. Don?

Leaves are thin, alternate, abundant and three-parted. Leaflets have wedge-shaped bases and are 0.5-1 in. (1.3-2.5 cm) long and hairy.


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


Describe the appearance of RubusphoenicolasiusMaxim.?

Rubus phoenicolasiusis a multi-stemmed, spiny, small shrub that invades open areas throughout the eastern United States. The canes have small spines and the entire plant is covered in minute, glandular, reddish hairs. Canes can, under favorable conditions, grow to 9 ft. (2.7 m) in length.


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


Is weeping lantana native to the United States?


What is the common name of Alliumvinealessp. vinealeL.?


What is the common name of MomordicacharantiaL.?


What is the growth habit of Sennaobtusifolia(L.) Irwin & Barneby?


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


What is the scientific name of tropical soda apple?


Is Sphaerophysasalsula(Pallas) DC. native to the United States?


Is this plant invasive to the United States?


What is the common name of EucalyptuscladocalyxF. Muell.?


Is HypericumandrosaemumL. native to the United States?


What is the growth habit of SolanumrostratumDunal?


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

Invasive (IPC) (Missouri), Prohibited (New York), Prohibited (Wisconsin), Watch List (Alabama), Watch List (Michigan)


Is common tarweed native to the United States?


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


Where can I view images of ColuteaarborescensL.?


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

The leaves, which arise from rhizomes and are usually opposite and unequal. The leaves are cordate to subrotund in shape measuring from 2-6 in. (5-15 cm) long and wide.


What is the scientific name of thunberg lespedeza?


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

The dandelion like seeds have a plume of bristles to aid in dispersal by wind.H. x floribundumalso spreads vegetatively by stolons.


Is orbicular whitetop, lens-podded hoary cress native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for Persicariaglabra(Willd.) M. Gómez?


Describe the foliage of ArdisiacrenataSims?

The evergreen leaves are leathery, dark-green and 4-8 in. (10-20 cm) long.


Does common st. johnswort 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.


What is the growth habit of MimosapigraL.?


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


What is the growth habit of CrotalariaspectabilisRoth?


What is the growth habit of LysimachianummulariaL.?


Basal leaves from a rosette 8-12 in. (20.3-30.5 cm) across. Stem leaves are alternate, up to 6 in. (15.2 cm) long, and lanceolate with margins that are usually crenate. Lower leaves clasp the stems but the upper leaves are more likely to be sessile.


Describe the foliage of Colocasiaesculenta(L.) Schott?

Leaves, supported by 3 ft. (1 m) long petioles, are arrowhead shaped, up to 2 ft. (0.6 m) long and 1.6 ft. (0.5 m) wide, peltate and velvety on the upper surface.


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 ValerianaofficinalisL.?

Valeriana officinalishas fragrant, white or pale pink flowers that are arranged in umbels. Each flower measures 0.2 in. (4 mm) long. Flowers bloom from June to August.


Is annual honesty native to the United States?


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


Does hoary alyssum pose any ecological threat?

Spreads rapidly due to the high number of seeds per plant. The plant emerges early in spring and continues to flower and produce seed until frost. It can cause toxicity to horses.


Where can I view images of Populusx canescens(Ait.) Sm. (pro sp.) [alba × tremula]?


Describe the flowers of small philippine acacia?

Acacia confusaflowers are small, rounded, yellow heads ranging from 0.23-0.3 in. (6-8 mm) in diameter. 1 to 3 flowers heads can be found in the axil of the phyllode.Acacia confusaflowers are fragrant and have numerous stamens.


Describe the appearance of marsh dayflower?

Murdannia keisakis an annual, emergent plant that invades wetlands in the southeastern and northwestern United States. Plant stems are succulent, form roots at the nodes, and grow prostrate along the ground. Stems are 12-30 in. (30.5-76.2 cm) long.


Describe the appearance of wine raspberry?


What is the growth habit of ArtemisiastellerianaBess.?


Does Wisteriasinensis(Sims) DC. pose any ecological threat?

Wisteria sinensiscan displace native vegetation and kill trees and shrubs by girdling them. The vine has the ability to change the structure of a forest by killing trees and altering the light availability to the forest floor. A native of China, it was first introduced into the United States in 1816 for ornamental purposes.


What is the common name of LigustrumsinenseLour.?


Where can I view images of prairie sunflower?


Is common pokeweed native to the United States?


What is the growth habit of job's tears?


Describe the foliage of CynoglossumofficinaleL.?

The first year, the basal leaves are petiolate, elliptical, dark green and 6-8 in. (15.2-20.3 cm) long. The leaves on the flowering stem are alternate and narrower towards the top of the plant.


What is the growth habit of RaphanussativusL.?


Where can I view images of yellow archangel?


The umbels of this plant are large, having 6-15 rays that can reach up to 1.5 in. (4 cm) in length. Each of the bractlets is lance-ovate in shape and measures 0.1-0.25 in. (3-6 mm) in length. The flowers are white and have 5 notched petals.Anthriscus sylvestrisblooms from May to June.


Is this plant invasive to the United States?


What is the growth habit of AbutilontheophrastiMedik?


Flowers are crowded in whorls which are usually distinct except towards the ends of branches. Perianth segments are orbicular-deltoid in shape are green colored at flowering but become brown.


Is PittosporumundulatumVent. native to the United States?


What is the scientific name of geraldton carnation weed?


What is the growth habit of crapemyrtle?


S. molestareproduce by spores and by budding of broken stems or attached nodes.


Describe the fruit of GalegaofficinalisL.?

Fruits are short pods with up to 9 seeds each.


Describe the fruit of ClematisorientalisL.?

Fruits ofC. orientalisconsist of rounded clusters of fluffy winged seeds (achenes).


What is the growth habit of european red raspberry?


Describe the flowers of Asparagusasparagoides(L.) Druce?

The pendent white flowers appear over winter and spring, from July to September. They can grow up to 0.8-2.4 in. (2-6 cm) long.


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


What is the common name of AllamandacatharticaL.?


What is the growth habit of chinese pistache?


Where can I view images of Microstegiumvimineum(Trin.) A. Camus?


What is the growth habit of PennisetumvillosumR. Br. ex Fresen.?


Where can I view images of SalixcapreaL.?


What is the common name of GaliumaparineL.?


Is yellow hornpoppy native to the United States?


Is frozen green buckthorn native to the United States?


Is this plant invasive to the United States?


Describe the appearance of creeping capeweed?

A low-growing short-lived (i.e. annual) herbaceous plant with semi-flowering stems reaching up to 11.8 in. (30 cm) tall. Prior to flowering it is either stemless and forming a basal rosette, or has short creeping or sprawling stems.


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


What is the growth habit of ohio buckeye?


Where can I view images of BuddlejamadagascariensisLam.?


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


What is the scientific name of orange cotoneaster?


Where can I view images of QuisqualisindicaL.?


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


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

The flower heads are dense, fluffy, gray or purple in color and 5.9-15.7 in. (15-40 cm) long. Flowering occurs from July to October.


What is the common name of Anthriscussylvestris(L.) Hoffmann?


What is the common name of IpomoeahederaceaJacq.?


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


Where can I view images of Froelichiagracilis(Hook.) Moq.?


What is the common name of AgrostiscaninaL.?


Is Setariapumilassp. pumila(Poir.) Roem. & Schult. native to the United States?


What is the scientific name of bristly foxtail?


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


Where can I view images of common purslane?


What is the growth habit of Sporobolusindicus(L.) R. Br.?


What is the scientific name of european cranberrybush?


Is this plant invasive to the United States?


Does Achnatherumbrachychaetum(Godr.) Barkworth pose any ecological threat?

Achnatherum brachychaetumcan be found in disturbed sites. It is often seen in alfalfa fields and nearby drainage ditches, dairies, and horse pastures.


Describe the appearance of common periwinkle?

Vinca minoris a vine-like erect or trailing groundcover; mostly evergreen; stems slender.


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


What is the growth habit of orange hawkweed?


Flowers are small, yellow, and found in large flat-topped umbels. Blooming occurs between August and October.


Describe the flowers of spotted deadnettle?

This plant’s color is a pink, dark lavender, or white, depending upon cultivar. The flowering appears heavily in May and June and sporadically thereafter, sometimes with a minor flush in early Autumn. Numerous clusters of small flowers occur at each node and the stem terminals.


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


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.


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


What is the invasive/noxious status of bluebuttons, field scabious and where is it classified as such?


What is the growth habit of crimson fountaingrass?


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


What is the growth habit of CentaureavirgataLam.?


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


Is large crabgrass native to the United States?


What is the growth habit of crabapple and apple?


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


Is AsclepiascurassavicaL. native to the United States?


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


Is this plant invasive to the United States?


What is the common name of EucalyptusglobulusLabill.?


Does Puerariamontanavar. lobata(Willd.) Maesen & S. Almeida pose any ecological threat?

Preferred habitat includes open, disturbed areas such as roadsides, right-of-ways, forest edges, and old fields.Pueraria montana var. lobataoften grows over, shades out and kills all other vegetation, including trees. It is native to Asia and was first introduced into the United States in 1876 at the Philadelphia Centennial Exposition. It was widely planted throughout the eastern United States in an attempt to control erosion.


Where can I view images of scotch thistle?


Describe the fruit of siberian peashrub?

Seed pods are slender, sharply pointed, smooth, and 1-2 in. (2.5-5 cm) long forming in late June. Color changes from green to tan in July and August.


Describe the fruit of shoebutton ardisia?

Fruits are drupes that are rounded, fleshy, 0.3 in. (8 mm) in diameter, and start out red in color but turn black or purple as they mature.


What is the growth habit of Cryptostegiagrandiflora(Roxb. ex R. Br.) R. Br.?


What is the common name of TerminaliacatappaL.?


What is the scientific name of praxelis?


What is the scientific name of italian buckthorn?


What is the U.S. Department of Agriculture (USDA) plant symbol for Terminaliamyriocarpavan Heurck & Muell.-Arg.?


What is the growth habit of LonicerajaponicaThunb.?


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

Invasive (North Carolina), Watch (Delaware)


Where can I view images of Securigeravaria(L.) Lassen?


What is the common name of VeronicapolitaFr.?


What is the scientific name of fountaingrass?


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


Is this plant invasive to the United States?


Describe the appearance of Ligustrumspp.L.?

Ligustrum spp.are deciduous, semi-evergreen, or evergreen shrubs and small trees in the Oleaceae (olive family). There are approximately 50 Ligustrum species that are native to Europe, North Africa, and Asia. Ligustrum spp. have been cultivated and developed into several horticultural varieties, and were introduced to North America as a common hedge in landscaping. Some Ligustrum spp. can grow to 5 m tall and have a stem diameter of 2.5-25 cm. Ligustrum spp. bark is whitish-tan to gray in color and smooth in texture. Slender twigs are straight, rounded or four-angled below the nodes, and gray-green in color. Winter buds are ovoid with two outer scales. Terminal buds are present.


Where can I view images of SolanumtampicenseDunal?


Where can I view images of bittersweet nightshade?


Describe the foliage of oriental virginsbower?

Leaves ofC. orientalisarranged opposite on the stem. Leaves are divided with from three to seven leaflets. Leaflets are lanceolate to elliptic to ovate usually with two to three lobes.


What is the scientific name of perennial false-brome?


What is the growth habit of Thinopyrumintermedium(Host) Barkworth & D.R. Dewey?


Is AgavesisalanaPerrine native to the United States?


Is mediterranean clone of caulerpa native to the United States?


Where can I view images of cutleaf blackberry?


Where can I view images of indian coralbean?


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


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


Describe the foliage of common hempnettle?

The opposite leaves are from 1-5 in (2.5-12.7) long. They are simple, short-petioled, ovate-lanceolate to lanceolate, and sparsely pubescent on both sides.


Is PhalarisaquaticaL. native to the United States?


What is the growth habit of CynoglossumofficinaleL.?


Where can I view images of seaside rose?


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


What is the growth habit of Urticadioicassp. dioicaL.?


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


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


What is the common name of ArctiumlappaL.?


Where can I view images of chocolate vine?


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


What is the scientific name of yellow bluestem?


Is this plant invasive to the United States?


What is the common name of JuncuseffususL.?


Stems and leaves are blue-green and covered with fine hairs. Leaves divided and bottom sides covered in fine hairs, giving a gray appearance.


Describe the foliage of common buckthorn, european buckthorn?

The leaf arrangement is usually sub-opposite, but examples of opposite and/or alternate arrangements are commonly found. Leaves are dark green, oval, 1.5-3 in. (3.8-7.6 cm) long, slightly serrate with 3 to 4 pairs of curving veins and a somewhat folded tip.


Is ChamaedoreaseifriziiBurret native to the United States?


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 U.S. Department of Agriculture (USDA) plant symbol for Eragrostiscilianensis(All.) Vign. ex Janchen?


Is milkflower cotoneaster native to the United States?


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


What is the common name of Campsisradicans(L.) Seem. ex Bureau?


What is the growth habit of primrose-willow?


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


What is the growth habit of morrow's honeysuckle?


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


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


What is the growth habit of large hop clover?


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


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


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


Is CupressusmacrocarpaHartw. ex Gord. native to the United States?


What is the scientific name of panic veldtgrass?


Does SpartinaanglicaC.E. Hubbard pose any ecological threat?

Spartina anglicacan be found in mudflats, channels, marshes, and even in meadows. It is native to northern Europe.


What is the common name of HeterothecagrandifloraNutt.?


Fruits are 0.06-0.12 in. (1.5-3 mm) long and narrowly elliptic.


Where can I view images of SolanumelaeagnifoliumCavanaugh?


What is the common name of KyllingabrevifoliaRottb.?


Is witchweed native to the United States?


What is the growth habit of woodland groundsel?


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


What is the growth habit of silversheath knotweed?


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


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


Is Sennaoccidentalis(L.) Link native to the United States?


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


Describe the fruit of BerberisthunbergiiDC.?

The berries ripen to a bright red color and are 0.25-0.3 in. (7-10 mm) long.


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


Is PraxelisclematideaR.M. King & H. Rob. native to the United States?


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


Describe the appearance of Lepidiumdraba(L.) Desv?

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


Is CarduusacanthoidesL. native to the United States?


Is this plant invasive to the United States?


What is the scientific name of nepalese firethorn?


What is the common name of SpergulamorisoniiBoreau?


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


What is the growth habit of LigustrumvulgareL.?


Where can I view images of JuniperusvirginianaL.?


What is the common name of PinusponderosaP.& C. Lawson?


What is the scientific name of purple african nightshade?


What is the growth habit of BerberisjulianaeC.K. Schneid.?


Is MelilotusalbusMedikus native to the United States?


Where can I view images of ChondrillajunceaL.?


What is the scientific name of english oak?


Describe the foliage of SalviaaethiopisL.?

Fine, woolly hairs cover the stems, new leaves and leaf undersides. Mature plants become less hairy and develop prominent venation on the leaves. Rosette leaves are grayish-green, petiolate and 4-12 in. (10.2-30.5 cm) long. Rosettes can be 1-4 ft. (0.3-1.2 m) in diameter. The stem leaves are opposite, smaller than the rosette leaves and aromatic (sage-like) when crushed. Leaves become smaller toward the apex of the stem.


Where can I view images of Eragrostiscilianensis(All.) Vign. ex Janchen?


What is the common name of PrunusmahalebL.?


Where can I view images of Alnusglutinosa(L.) Gaertn.?


Where can I view images of IpomoeacoccineaL.?


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 AmbrosiaartemisiifoliaL.?

Flowers inconspicuous, yellowish-white, and found on terminal branches.


Is Hordeummurinumssp. glaucum(Steud.) Tzvelev native to the United States?


Is SisymbriumirioL. native to the United States?


Is MeliaazedarachL. native to the United States?


What is the scientific name of malabar plum?


What is the common name of LoliummultiflorumLam.?


Where can I view images of ArdisiaellipticaThunb?


Fruits are dark red, edible and golf ball-sized.


Flowers are borne in axillary clusters, pinkish-violet, about 0.4 in. (1 cm) across.


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


Is RubussieboldiiBlume native to the United States?


What is the U.S. Department of Agriculture (USDA) plant symbol for brazilian waterweed, brazilian elodea?


Describe the foliage of Myriophyllumaquaticum(Vell.) Verdc.?

Leaves are abundant, whorled, pinnately compound, and finely dissected. Submersed leaves are 0.6-1.4 in. (1.5-3.5 cm) long and have 20 to 30 divisions per leaf. Emergent leaves are 0.8-2 in. (2-5 cm) long, less divided and greener than the submersed leaves.


Describe the appearance of cherry laurel?

Prunus laurocerasusis a large evergreen shrub or tree that can grow from 10-30 ft. (3-9 m) tall.


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

Prohibited (New York), Tier 2 (Maryland)


Leaves are whorled in bunches of 3-8, but most often with whorls of 5. The midribs of the leaves are reddish in color with the undersides having small, raised teeth. Leaves are 0.2-0.8 in. (5-20 mm) long, less than 0.1 in. (2 mm) wide and have serrated margins.


Describe the fruit of Halogetonglomeratus(Bieb.) C.A. Mey.?

Halogeton glomeratusproduces two types of seeds. Seed produced in the early summer are light tan and wingless; seeds produced in the late summer are dark brown and winged.


What is the common name of Carpobrotuschilensis(Molina) N.E. Br.?


Describe the appearance of HesperismatronalisL.?

Hesperis matronalisis an herbaceous, biennial forb that grows up to 4 ft. (1.2 m) in height. It may be included in native wildflower mix packets. Always check the list of species in wildflower mixes.


Describe the fruit of Triadicasebifera(L.) Small?

Three-lobed, greenish fruit are found in clusters at the end of branches. Fruit mature to black and then open to reveal the white wax covered seeds.


Is this plant invasive to the United States?


What is the growth habit of little mallow?


Where can I view images of large crabgrass?


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


Where can I view images of monterey cypress?


What is the scientific name of mouse barley?


What is the growth habit of monkeygrass?


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


Describe the appearance of Melilotusofficinalis(L.) Lam.?

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


What is the U.S. Department of Agriculture (USDA) plant symbol for Vulpiamyuros(L.) K.C. Gmel.?


What is the common name of Mirabilisnyctaginea(Michx.) MacM.?


What is the scientific name of spiny fiddlewood?


Where can I view images of japanese angelica tree?


Describe the flowers of himalayan balsam?

Flowering occurs from June to October. The pink, irregular, solitary flowers appear on axillary stalks.


What is the common name of Oplismenusundulatifolius(Ard.) Roem. & Schult.?


What is the common name of Conyzabonariensis(L.) Cronquist?


What is the common name of Stellariapallida(Dumort.) Crépin?


What is the scientific name of cape bugle-lily?


Describe the appearance of diffuse knapweed?

Centaurea diffusais a biennial, annual, or short-lived perennial that is 8-40 in. (20.3-101.6 cm) tall.


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


Is annual false-brome native to the United States?


Describe the foliage of RubusphoenicolasiusMaxim.?

The alternate leaves are compound with three heart-shaped, toothed leaflets. The undersides of the leaflets are silvery-white and very hairy.


Is this plant invasive to the United States?


Is creeping croftonweed native to the United States?


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


What is the growth habit of mile-a-minute vine, asiatic tearthumb?


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


Does lilac chastetree pose any ecological threat?

Vitex agnus-castusis showing invasive tendencies in areas where it has been planted extensively in landscaping, as in Texas. It can now be found in limestone outcrops and dry creek beds throughout Central Texas.(1) The ’virtues’ listed by nurseries and gardeners indicate that the invasive potential for this plant may be high. Those characteristics include: “Easy to grow in any soil; can take of itself; survived six years drought unattended; hardly ever disturbed by pest or disease; and tolerant of salt drift.”(2) It does produce fertile seeds and readily seeds out into surrounding areas.Vitex agnus-castusshould be listed as an EDRR (Early Detection & Rapid Response) species across the southern United States where it is warm enough for it to survive the winters.


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 japanese clover?

Flowers are pink, purple and white, 0.2-0.3 in. (5-8 mm) long and papilionaceous.


What is the scientific name of eastern waterleaf?


What is the U.S. Department of Agriculture (USDA) plant symbol for Ampelopsisglandulosavar. brevipedunculata(Maxim.) Momiy.?


Where can I view images of mouse barley?


Describe the appearance of SalixcinereaL.?

Salix cinereais a is a small tree that can reach heights of about 33 ft (10 m) tall. It is generally branched from the base but can form a single trunk. It usually has a broad, rounded to flattened crown. The bark is dark grey-brown and often becomes fissured with age.


Where can I view images of GalinsogaparvifloraCav.?


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


Is iguanatail native to the United States?


Is MiscanthussinensisAnderss. native to the United States?


What is the scientific name of doublefile viburnum?


Describe the appearance of asiatic dayflower?

Commelina communisis an annual herb with many branched, prostrate stems, which are minutely pubescent distally, and about 3.4 ft. (1 m) long.


Is AegopodiumpodagrariaL. native to the United States?


Is italian arum native to the United States?


Is scotch broom native to the United States?


Describe the foliage of Wisteriafloribunda(Willd.) DC.?

Alternate, pinnately compound leaves (13-19 leaflets) are tapered at the tip with wavy edges. Leaves are up to 12 in. (30 cm) in length.


What is the growth habit of Maclurapomifera(Raf.) Schneid.?


Does Abutilongrandifolium(Willd.) Sweet pose any ecological threat?

Abutilon grandifoliumhas escaped in Hawaii and naturalized in waste areas, fields, and along roadsides, especially in arid regions, from near sea level up to 1970 ft. (600 m). It is a widespread tropical weed, although it is still grown in some areas for fiber or as an ornamental.Abutilon grandifoliumhas also escaped and naturalized in disturbed habitats in parts of Australia, New Zealand, French Polynesia and Niue. It can be especially troublesome in riparian habitats.


What is the growth habit of creeping bentgrass?


Where can I view images of BrassicatournefortiiGouan?


Does Cortaderiaselloana(Schult. & Schult. f.) Asch. & Graebn. pose any ecological threat?

Cortaderia selloanarequires sandy soils, ample moisture, and sunny locations. It tolerates warm summer temperatures, intense sunlight, and moderate drought. The vigorous growth habit and large size enables it to invade natural ecosystems.Cortaderia selloanacan invade sandy, moist ditch banks. Vegetative reproduction can occur when root fragments develop shoots at the base of the plant. It has the ability to form dense stands where it can quickly become a fire hazard.


Is LamiumamplexicauleL. native to the United States?


Describe the foliage of TyphalatifoliaL.?

Leaves are linear, erect, light green to greyish in color, thick, sword-shaped, and flat with a sheath near the base. 12 to 16 leaves can arise from each shoot


Is perennial ryegrass native to the United States?


What is the common name of OnopordumacanthiumL.?


Is this plant invasive to the United States?


Does carolina fanwort, fanwort pose any ecological threat?

Cabomba carolinianacan form extremely dense stands which can clog drainage systems and interfere with recreational activities such as swimming and boating. It is still sold in the aquarium trade. It is believed the introduction ofCabomba carolinianaoutside of its native range is a result of improper disposal of aquarium contents. The plants are able to root from vegetative parts and thus are easily spread. In the north it appears that the seeds do not readily germinate. However, viable shoots have been observed in January beneath ice.


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

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


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


Where can I view images of athel tamarisk?


Where can I view images of Catalpaspeciosa(Warder) Warder ex Engelm.?


Is Taliparititiliaceumvar. tiliaceumL. native to the United States?


Where can I view images of purple starthistle?


Describe the fruit of Stellariapallida(Dumort.) Crépin?

Fruits are very small and are covered by extremely hairy calyces.


Is bulbil bugle-lily native to the United States?


Does black bamboo pose any ecological threat?

Phyllostachys nigraspreads from deliberately planted gardens into nearby bushlands. It is native to southern China.


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


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

The bright yellow flowers ofNymphoides peltatahave five petals, and measure from 1-1.5 in. (3-4 cm) in diameter when fully open. There is one to several flowers on each stalk. The edges of the petals are fringed. This plant flowers from June to September.


What is the scientific name of common saltwort?


What is the growth habit of hairy buttercup?


Is small philippine acacia native to the United States?