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

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.


Does CentaureanigraL. 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.


Describe the foliage of lilac chastetree?

The palmately compound leaves ofVitex agnus-castusare 3-4 in (7.6-10 cm) in diameter and with 5 to 7 lacelike leaflets. The foliage is aromatic and ranges from grey-green to dark green above and lighter underneath.


Does Hirschfeldiaincana(L.) Lagrèze-Fossat pose any ecological threat?

Hirschfeldia incanacan be found in disturbed areas such as along roadsides, canyons, creek bottoms, and dry fields. It is native to the Mediterranean.


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

Hieracium x floribundumis a perennial herbaceous plant in the sunflower family that ranges from 10-36 in. (25-91 cm) tall. The single stem contains a milky sap and has long sparsely scattered bristles.H. x floribundumis native to temperate Asia and Europe.


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

Potentially Invasive, Prohibited (Connecticut)


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 Cirsiumarvense(L.) Scop. native to the United States?


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


Where can I view images of molassesgrass?


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


Is Solanumdulcamaravar. dulcamaraL. native to the United States?


What is the growth habit of perennial soybean?


Describe the fruit of small philippine acacia?

The fruit ofAcacia confusaare pods that each contain about 8 brown, compressed, elliptic seeds. Fruit pods are dark brown to black. They range from to 3 in. (8 cm) long, to 0.5 in. (12 mm) wide. The pods are plump and usually slightly curved or twisted.


What is the growth habit of japanese privet?


Does small broomrape pose any ecological threat?

Orobanche minoris a Federal Noxious Weed and concern exists that it may spread to infest crops such as legume forages and leafy green vegetables. Heavy infestations can cause crop failure. It is native to the Middle East and was probably introduced into North America with contaminated seed.


Does dalmatian toadflax pose any ecological threat?

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


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


Is PyruscalleryanaDecne. native to the United States?


Is Kummerowiastriata(Thunb.) Schindl. native to the United States?


What is the common name of AnchusaazureaP. Mill.?


Flowers are white with five petals and occur in small clusters from April to June.


Is VeronicapolitaFr. native to the United States?


Describe the flowers of yellow devil hawkweed?

There can be up to 30 flowers per plant. The small flowers are held in a loose corymb. The yellow ray flowers resemble small dandelions and bloom from June to August.


Describe the fruit of Alternantheraphiloxeroides(Mart.) Griseb.?

Fruits are very small, and single-seeded.


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


Is ravennagrass native to the United States?


Is Securigeravaria(L.) Lassen native to the United States?


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


Is this plant invasive to the United States?


Does oriental mustard pose any ecological threat?

Sisymbrium orientaleinfests roadsides, ditches and fields. It is native to Europe, Asia, and North Africa.


What is the growth habit of VerbenaincomptaP. W. Michael?


What is the common name of Syagrusromanzoffiana(Cham.) Glassman?


Describe the foliage of slenderflower thistle?

Stem wings can be up to 0.4 in. (10 mm) wide. Leaves are deeply lobed and also very spiny.


Describe the flowers of Achyranthesjaponica(Miq.) Nakai?

The small flowers have no petals and are clustered tightly on the inflorescence which occur at the ends of the stems and upper branches. They flower in summer.


What is the scientific name of porcelain-berry?


What is the growth habit of SetariafaberiHerrm.?


What is the scientific name of oxeye daisy?


Where can I view images of pacific bentgrass?


Where can I view images of Opuntiaficus-indica(L.) P. Mill.?


Describe the appearance of black mustard?

Brassica nigrais an annual plant that can grow 2-8 ft. (0.6-2.5 m) tall, branching occasionally.


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 Cenchruspurpureus(Schumach.) Morrone?


Describe the appearance of curly leaf pondweed?

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


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


What is the common name of CerastiumfontanumBaumg.?


Is japanese brome native to the United States?


What is the scientific name of eulophia ground orchid?


Is this plant invasive to the United States?


Is australian almond native to the United States?


Does TrapanatansL. pose any ecological threat?

The dense, floating mats ofTrapa natansrestrict light availability, reduce the oxygen content, and displace other emergent and floating vegetation. It also limits boating, fishing, swimming and other recreational activities.Trapa natansis native to Europe and Asia and was first observed in the United States in Massachusetts in the late 1800s.


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


What is the scientific name of giantseed goosefoot?


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


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


Is CyperusmicroiriaSteud. native to the United States?


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


Is PopulustremuloidesMichx. native to the United States?


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


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


Is RumexcrispusL. native to the United States?


Where can I view images of TerminaliacatappaL.?


Is SalixviminalisL. native to the United States?


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


What is the scientific name of toringo crab?

Malustoringo(Siebold) Siebold ex de Vriese


What is the growth habit of english elm?


What is the common name of PunicagranatumL.?


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

Fruits are also produced in a panicle. Seeds form in the sessile spikelets.


What is the scientific name of black medic?


What is the U.S. Department of Agriculture (USDA) plant symbol for Puerariamontanavar. lobata(Willd.) Maesen & S. Almeida?


Describe the foliage of chinese wisteria?

Alternate, pinnately compound (7-13 leaflets) leaves are tapered at the tip with wavy edges. Leaflets are approximately 3 in. (7.6 cm) in length.


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.


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


The leaves are alternate, ovate to lanceolate from 0.25-1.25 in. (0.6-3.2 cm) long with smooth margins.


What is the common name of Cenchruspurpureus(Schumach.) Morrone?


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

Potentially Invasive, Prohibited (Connecticut)


What is the growth habit of common cordgrass?


What is the scientific name of shoebutton ardisia?


Describe the appearance of Berteroaincana(L.) DC?

Berteroa incanais an annual, biennial, or perennial in the mustard family growing 1-3 ft. (0.3-0.9 m) tall.


It produces unbranched flower-spikes that carry the single-flowered spikelets along one side only. Matgrass flowers from June until August.


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


Where can I view images of narrowleaf hawksbeard?


What is the scientific name of eastern cottonwood?


What is the common name of Alchemillamollis(Buser) Rothm.?


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


What is the invasive/noxious status of Centaureastoebessp. micranthos(Gugler) Hayek and where is it classified as such?

Invasive (Delaware), Invasive (DOC, IPC) (Missouri)


What is the scientific name of large hop clover?


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


Describe the flowers of TamarixchinensisLour.?

Flowers are white to pink in color and develop on slender racemes that are 0.8-2 in. (2-5 cm) long. Flowers have 5 stamens.


Where can I view images of laurel clockvine?


Describe the foliage of CarthamuslanatusL.?

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 chinaberry?


What is the common name of Cicutadouglasii(DC.) Coult. & Rose?


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


Where can I view images of Viciatetrasperma(L.) Schreb.?


Is this plant invasive to the United States?


Describe the fruit of CallitrichestagnalisScop.?

The fruits are nearly round (suborbicular) and 0.06-0.08 in. (1.5-2 mm) thick. Each mericarp of the fruit has a thin (0.004 in. / 0.1 mm) winged margin running from its base to its apex.


What is the growth habit of bluebuttons, field scabious?


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


What is the common name of HesperismatronalisL.?


What is the scientific name of southern crabgrass?


Is western waterhemlock native to the United States?


Is InulaheleniumL. native to the United States?


Where can I view images of Kummerowiastipulacea(Maxim.) Makino?


What is the common name of InulaheleniumL.?


What is the growth habit of ViciasativaLinnaeus?


Is ArenariaserpyllifoliaL. native to the United States?


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


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


Describe the foliage of Caulerpataxifolia(Vahl) C. Agardth?

Fronds are fern-like, bright green, pinnate, and from 2-26 in. (5-65 cm) long that extend upward from horizontal stolons. The stolons can grow to 10 ft. (3 m) long and attach to underwater surfaces such as rocks, mud, or sand via root-like rhizoids.


What is the scientific name of european waterstarwort?


Where can I view images of red morning-glory?


What is the growth habit of diffuse knapweed?


The flower are cylindrical catkins which appear before the leaves in spring. They are about 0.8-1.2 in (2-3 cm) long by 0.2-0.4 in (0.6-1 cm) wide with female catkins longer and narrower than male catkins.


Where can I view images of wild chervil?


Is Ipomoeaindica(Burm. f.) Merr. native to the United States?


Is this plant invasive to the United States?


What is the invasive/noxious status of porcelain-berry and where is it classified as such?

Invasive (Connecticut), Invasive (Delaware), Invasive (North Carolina), Prohibited (New York), Prohibited (Wisconsin), Watch List (Alabama)


Describe the foliage of common barberry?

The leaves are oval, 0.75-2 in. (2-5 cm) long, 0.25-0.75 in. (1-2 cm) wide, serrate and occur in clusters of 2-5. Each cluster of leaves is subtended by a short, three-branched spine.


Is oriental lady's thumb native to the United States?


Does ElaeagnusangustifoliaL. pose any ecological threat?

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


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


Seed pods are constricted between the individual seeds and are tipped with a small beak.


Describe the appearance of lilac chastetree?

Vitex agnus-castusis a sprawling shrub that grows from 10-20 ft. (3-6 m) and about as wide.


Describe the fruit of EucalyptuscamaldulensisDehnhardt?

The seeds are a pea-like capsule that contains tiny seeds.


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


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

The greenish-yellow flowers have no petals and are tubular and from 0.08-0.12 in. (2-3 mm) long. Each flower has four sepals and 8 stamens held in two whorls of four. Two small bracts arise from a tuft of white hairs at the base of each flower.


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 lady's-mantle?


What is the growth habit of JasminumdichotomumVahl?


What is the growth habit of evergreen clematis?


Where can I view images of smallflower galinsoga?


Describe the appearance of common cordgrass?

Spartina anglicais a perennial rhizomatous grass that can grow from 11.8-51.2 in. (30-130 cm) tall.


Does RosarugosaThunb. pose any ecological threat?

R. rugosacan tolerate some salinity and has become an invasive problem in many coastal regions, where it can form monotypic stands. It can change A native of temperate and coastal areas of East Asia, it was has been introduced around the world for ornamental purposes. It is now found in natural areas in Australia, New Zealand, Europe and North America.


Where can I view images of showy milkweed?


Is PoatrivialisL. native to the United States?


Is Thelypterisopulenta(Kaulf.) Fosberg native to the United States?


What is the scientific name of bald brome?


Is this plant invasive to the United States?


What is the scientific name of nodding plumeless thistle?


Fruit are round, 0.25 in. (0.6 cm) in diameter and dark purplish-black when mature.


What is the growth habit of glossy shower?


What is the scientific name of epidendrum ×obrienianum?

Epidendrumx obrienianumRolfe [evectum × ibaguense]


Describe the appearance of scotch broom?

Cytisus scopariusis a perennial shrub that grows on average from 3.3-9.8 ft. (1-3 m) tall, but can reach to 13 ft. (4 m). The stems are five-angled and remain green all year.


Ficus caricais well known for its large, fragrant leaves. The leaves are 4.7-9.8 in. (12-25 cm) long and 3.9-7.1 in. (10-18 cm) across, and deeply lobed with three or five lobes.


Describe the appearance of ElaeagnuspungensThunb.?

Elaeagnus pungensis a dense evergreen shrub that invades natural areas throughout the southeastern United States. The shrub is often multi-stemmed and short. Sharp shoots give it a thorny appearance. Shrubs can grow 3.3-26.3 ft. (1-8 m) tall. Shrubs are usually very dense with long shoots extending from the top.


What is the common name of MalvaparvifloraL.?


Broussonetia papyriferaleaves are highly variable in size (3-10 in. [7.6-25.4 cm]), shape, and arrangement. Shape ranges from heart-shaped and entire to multi-lobed and highly dissected. The leaves are usually alternate, but they can also be found whorled or opposite. Leaves are very fuzzy with coarsely serrated margins. The sap is milky-white and freely flows from cut surfaces.


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


Is Campsisradicans(L.) Seem. ex Bureau native to the United States?


What is the scientific name of okie bean?


Does curly leaf pondweed pose any ecological threat?

Potamogeton crispustolerates fresh or slightly brackish water and can grow in shallow, deep, still or flowing water. Plants can grow in clear or turbid water, but are mostly shade intolerant. The method of introduction is unclear and it may have been introduced as a hitchhiker on boats, through the aquarium trade, or accidently when stock from a fish hatchery was released. It was first collected in 1860.


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


Where can I view images of tropic ageratum?


Where can I view images of canary island date palm?


What is the growth habit of Brachypodiumsylvaticum(Huds.) Beauv.?


Is Salixx pendulinaWenderoth [babylonica × fragilis] native to the United States?


What is the growth habit of kentucky bluegrass?


Where can I view images of CenchrusechinatusL.?


Is this plant invasive to the United States?


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


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


Is dodder (nonnative) native to the United States?


What is the common name of VitisviniferaL.?


What is the scientific name of field pennycress?


Where can I view images of MalvaparvifloraL.?


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


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


Is common valerian native to the United States?


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


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


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


Agrostis giganteais a perennial grass that makes a coarse turf and grows to 2-3 ft. (0.6-0.9 m) tall.


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


What is the common name of Gastridiumphleoides(Nees & Meyen) C.E. Hubbard?


Is DigitalispurpureaL. native to the United States?


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

Potentially Invasive, Prohibited (Connecticut)


Is Cryptomeriajaponica(L. f.) D. Don native to the United States?


Is Falcatariamoluccana(Miquel) Barneby & Grimes native to the United States?


Is this plant invasive to the United States?


What is the growth habit of SalixbabylonicaL.?


What is the growth habit of alsike clover?


What is the scientific name of crownbeard?

Verbesinaencelioides(Cav.) Benth. & Hook. f. ex Gray


What is the growth habit of AcaciaauriculiformisA. Cunningham ex Benth.?


Where can I view images of common groundsel?


Is SalixmatsudanaKoidzumi native to the United States?


Describe the appearance of NajasminorAll.?

Najas minoris an herbaceous, aquatic annual with stems that can grow 4-7.75 in. (10-20 cm) long. These stems can be up to 0.04 in. (1 mm) thick.


What is the growth habit of SaginaprocumbensL.?


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

Nymphoides cristatahas a single heart-shaped leaf with smooth margins, cordate base, and short petiole at the tip of each stem.


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 dwarf honeysuckle?


Is silverleaf nightshade native to the United States?


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


Describe the flowers of leatherleaf mahonia?

Flowering occurs in late winter and early spring, when fragrant, lemon-yellow flowers develop.


Where can I view images of VincaminorL.?


Describe the appearance of spurgelaurel?

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


Describe the foliage of MedicagolupulinaL.?

Stems are light green or reddish green and densely covered with white hairs. The alternate compound leaves are trifoliate.


Is this plant invasive to the United States?


What is the common name of BromusrubensL.?


Describe the foliage of ImpatiensglanduliferaRoyle?

The foliage is opposite or whorled. Leaves are lanceolate to lance-ovate with acuminate tips. Leaves are simple, serrate and 6 in. (15.2 cm) long.


Where can I view images of tall morning-glory?


Where can I view images of SchismusarabicusNees?


Where can I view images of incense-cedar?


Is blackeyed susan vine native to the United States?


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


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


Is autumn olive native to the United States?


Is sapodilla native to the United States?


What is the growth habit of EucalyptuscamaldulensisDehnhardt?


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


Describe the flowers of slenderflower thistle?

The small flower heads (less than 1 in. [2.5 cm] long) are slender, purple, and lack stalks. Flowering occurs from May to July.


What is the common name of AcaciaauriculiformisA. Cunningham ex Benth.?


Describe the foliage of creeping capeweed?

Its simple leaves are mostly basal and somewhat elongated in shape with toothed to deeply lobed margins. These leaves 2 to 10 in. (5-25 cm) long and 0.8 to 1.4 in. (2-6 cm) wide have hairless or slightly hairy (upper surfaces that are green in color and whitish, densely felty-hairy undersides.


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


Does strawflower pose any ecological threat?

Helichrysum petiolareis known for successfully outcompeting native plant species. It can be found in ditches and along roadsides. This plant has been popular as a landscape shrub because it is so hardy and easy to grow. It is native to South Africa.


Is this plant invasive to the United States?


Does PopulusalbaL. pose any ecological threat?

Branches are susceptible to breakage when under stress, such as heavy snow or ice. Trees produce prolific rootsprouts.Populus albais native to Eurasia and grows best in full sun.


Where can I view images of VerbascumthapsusL.?


What is the scientific name of largeleaf blackberry?


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


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


What is the common name of CentaureavirgataLam.?


Describe the flowers of MiconiacalvescensDC.?

Inflorescence is a large panicle 7.9-13.8 in. (20-35 cm) long, with 1000 to 3000 flowers. Flowers are white to pink, sessile, with oblong to obovate petals that are 0.08-0.12 in. (2-3 mm) long.


Is eastern waterleaf native to the United States?


What is the common name of Jasminummultiflorum(Burm. f.) Andr.?


Describe the foliage of wetland nightshade?

Leaves are alternate, to 10 in. (25 cm) long, 3 in. (7 cm) wide, wavy along the margins and have prickles on the veins.


What is the growth habit of PotamogetoncrispusL.?


Where can I view images of Kalopanaxseptemlobus(Thunb.) Koidz?


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


Is Pseudotsugamenziesii(Mirbel) Franco native to the United States?


Describe the appearance of ovate goatgrass?

Aegilops geniculatais an annual grass that grows in tufts. The rounded stems are geniculate, generally upright and grow from 4-12 in. (10-30 cm) long.A. geniculatais native to Africa, temperate Asia and Europe.


Is Pseudelephantopusspicatus(Juss. ex Aubl.) C.F. Baker native to the United States?


Where can I view images of PlantagolanceolataL.?


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


Is this plant invasive to the United States?


What is the growth habit of longspine sandbur?


Describe the foliage of brazilian waterweed, brazilian elodea?

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


What is the common name of PraxelisclematideaR.M. King & H. Rob.?


What is the common name of BuddlejalindleyanaFortune ex Lindl.?


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

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


Where can I view images of CynaracardunculusL.?


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


What is the common name of ViburnumplicatumtomentosumMiq.?


Is russian thistle native to the United States?


Describe the appearance of common hempnettle?

Galeopsis tetrahitis an herbaceous annual that grows to be 1-3 ft (0.3-0.9 m) tall. The simple to branched stems are square, swollen at leaf nodes, and covered with coarse, downward pointing hairs intermixed with shorter glandular hairs. It is native to Europe.


Is VitexrotundifoliaL. f. native to the United States?


What is the scientific name of carolina fanwort, fanwort?


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


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


What is the growth habit of Torilisarvensis(Huds.) Link?


Describe the foliage of Kummerowiastipulacea(Maxim.) Makino?

Leaves are alternate, trifoliate, petiolate and up to 0.75 in. (4 cm) long.


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 hairy beggarticks?


What is the growth habit of Passifloratripartitavar. mollissima(Kunth) Holm-Niesen & P.M. Jørg.?


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


What is the common name of HolcuslanatusL.?


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


What is the scientific name of buffelgrass?


What is the scientific name of ravennagrass?

Tripidiumravennaessp. ravennae(L.) H. Scholz


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


Describe the appearance of VerbascumblattariaL.?

Verbascum blattariais a perennial plant that can grow 2-4 ft. (0.6-1.2 m) tall and is usually unbranched.


What is the growth habit of bloodflower milkweed?


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


Does Lepidiumdraba(L.) Desv pose any ecological threat?

Lepidium drabainvades rangelands, pastures, streambanks, and open forests primarily in the western United States, although it does occur in the East. It can form large infestations that can displace native species and reduce grazing quality. This plant is native to Central Europe and Western Asia and was first introduced into the United States in the early 20th century.


Is scotch thistle native to the United States?


Describe the flowers of bulbous bluegrass?

Flowering occurs from May-June. Panicle is from 1.2-5.1 in. (3-13 cm) long, 1.18-3.15 in. (3-8 cm) wide and pyramid shaped. It is open with long branches. The branches at the base are in clusters of 3-5. There are 3-5 flowers per spikelet held on short, slender stalks.


Is Asparagusasparagoides(L.) Druce native to the United States?


The leaves are alternate, 8 in. (20.3 cm) long, broadly-heart shaped with prominent veins that resemble greenbrier leaves. The rounded stems are thin and wiry.


Does AcerplatanoidesL. pose any ecological threat?

Acer platanoidesis able to shade out native understory vegetation such as spring ephemerals, and eventually out-competes native tree species in the forest canopy. Thus, it can reduce native species diversity and change the structure of forest habitats.


Is britton's wild petunia native to the United States?


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

Myriophyllum aquaticumis an herbaceous, rooted, submerged to emergent plant that invades aquatic habitats throughout much of the United States. Stems are stout and blue-green in color.


What is the growth habit of denseflower cordgrass?


What is the growth habit of Cirsiumarvense(L.) Scop.?


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


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


The brown bracts of the inflorescence give this plant its common name. Flowering occurs from June to October, when rose to purple flowers appear in 1-1.25 in. (2.5-3.2 cm) wide, solitary heads at the tips of the branches.


Is Lobulariamaritima(L.) Desv. native to the United States?


Is this plant invasive to the United States?


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


Does LigustrumamurenseCarrière pose any ecological threat?

L. amurensegrows well in average, dry to medium, well-drained soils in full sun to part shade. It does not do well in wet conditions.L. amurenseis tolerant of a wide range of soils and is tolerant of urban conditions. Plants will naturalize by self-seeding in optimum growing conditions, and may form thickets in areas where growth is not controlled.L. amurensehas been planted extensively in landscape settings as a hedge.


What is the scientific name of rose of sharon?


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


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


What is the scientific name of broom teatree?


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


Does PyruscalleryanaDecne. pose any ecological threat?

Pyrus calleryana'Bradford', produce sterile fruits because they do not self-pollinate. They have been widely planted throughout the United States since the early 1900s as an ornamental. New cultivars ofPyrus calleryanawere bred to reduce the tree's tendency to split in snow or high winds. The Bradford pear cultivar, otherP. calleryanacultivars andP. betulifoliaor Asian pear, can hybridize and produce fertile fruit. In addition to this, fertile pear varieties are commonly used as the rootstock when grafting. If the grafted crown is damaged the fertile rootstock can them dominate, producing fertile fruit. These factors and others may have contributed to the trees seeding out into natural areas and becoming an invasive problem.


What is the scientific name of star-mustard?


What is the common name of HypochaerisradicataL.?


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


Describe the foliage of lily of the valley vine?

The simple leaves are ovate to rhombic shaped with entire margins. There are often 2 per node and they are sparsely hairy. Paired leaves are usually visibly unequal in size.


What is the growth habit of blue morning-glory?


What is the growth habit of Phyllostachysnigra(Lodd.) Munro?


What is the common name of VeronicapersicaPoir.?


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


What is the invasive/noxious status of Lonicerax bellaZabel [morrowii × tatarica] and where is it classified as such?

Category 2 (Alabama), Invasive (IPC) (Missouri), Invasive, Prohibited (Connecticut), Prohibited (New York), Restricted (Wisconsin)


Is this plant invasive to the United States?


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


Describe the fruit of purple starthistle?

The fruit is an achene 0.08-0.16 in. (2-4 mm) long which lacks a pappus.


Is european frog-bit native to the United States?


What is the common name of IlexcornutaLindl. & Paxton?


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


Where can I view images of grassy arrowhead?


Does amur privet pose any ecological threat?


What is the growth habit of Solenostemonscutellarioides(L.) Codd?


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

Halogeton glomeratusis a 2-17.7 in. (5-45 cm) tall, annual herb. The stems are often curved at the base and tinged reddish or purple.


Is Stellariamediassp. media(L.) Vill. native to the United States?


Is bull thistle native to the United States?


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

Prohibited (Wisconsin), Tier 2 (Maryland)


What is the common name of Ludwigiaperuviana(L.) Hara?


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


Is OrnithogalumumbellatumL. native to the United States?


Describe the appearance of FicariavernaHuds.?

Ficaria vernais a short (up to 12 in. [30.5 cm]), herbaceous perennial that invades forests throughout the East, Midwest and Pacific Northwest regions of the United States.


Is SalsolakaliL. native to the United States?


Is ThlaspialliaceumL. native to the United States?


Is Tetradiumdaniellii(Benn.) T.G. Hartley native to the United States?


Is this plant invasive to the United States?

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


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


What is the growth habit of eastern poison-ivy?


What is the growth habit of european cranberrybush?


What is the growth habit of mayweed, scentless chamomile?


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


What is the scientific name of hairy pepperweed?


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


What is the common name of PhyllostachysaureosulcataMcClure?


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


What is the common name of GlauciumflavumCrantz?


What is the common name of HyoscyamusnigerL.?


Is IlexaquifoliumL. native to the United States?


What is the common name of Ipomoeaindica(Burm. f.) Merr.?


What is the growth habit of PhalarisaquaticaL.?


Is garden vetch native to the United States?


What is the scientific name of winter vetch?


Is this plant invasive to the United States?


Describe the fruit of SaccharumravennaeL.?

Purplish spikelets are 0.12-0.24 in. (3-6 mm) long. They are spread by wind.


Is hydrilla native to the United States?


Describe the flowers of AmbrosiatomentosaNutt.?

The yellow flowers ofA. tomentosaare very small and inconspicuous. The male flowers are held in umbels at the top of the stem while the spiny female flowers are found in the leaf axils. The spiny female flowers help to set this species apart from other Ambrosia species.


Where can I view images of CardiospermumhalicacabumL.?


What is the growth habit of TamarixparvifloraDC.?


Where can I view images of Lespedezacuneata(Dum.-Cours.) G. Don?


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

Flowers are tiny, white, 5-petaled and clustered in small, flat-topped umbels. Flowering occurs from June to September.


What is the U.S. Department of Agriculture (USDA) plant symbol for Ageratinariparia(Regel) King & H.E. Robins.?


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


What is the common name of ColuteaarborescensL.?


What is the growth habit of wintergreen barberry?


Is field madder native to the United States?


What is the growth habit of jeffrey pine?


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


What is the common name of SymphytumofficinaleL.?


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


Describe the appearance of moth mullein?

Verbascum blattariais a perennial plant that can grow 2-4 ft. (0.6-1.2 m) tall and is usually unbranched.


What is the scientific name of common pepperweed?


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


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


Where can I view images of paradise apple?


Is this plant invasive to the United States?


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

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


Where can I view images of Ceratocephalatesticulata(Crantz) Bess.?


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


What is the scientific name of waterclover?


Foliage on first year rosettes is green, heart shaped, 1-6 in. (2.5-15.2 cm) long leaves. Foliage becomes more triangular and strongly toothed as the plant matures.


What is the growth habit of Miscanthussacchariflorus(Maxim.) Franch.?


What is the common name of Eragrostiscilianensis(All.) Vign. ex Janchen?


Where can I view images of lesser swinecress?


What is the growth habit of Genistamonspessulana(L.) L. Johnson?


Where can I view images of golden polypody?


Where can I view images of Phragmitesaustralis(Cavanilles) Trinius ex Steudel?


What is the growth habit of cotoneaster?


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


What is the scientific name of bristletips?


Where can I view images of lakeshore nutrush?


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


Describe the foliage of sericea lespedeza?

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 common name of GeraniummolleL.?


Describe the appearance of CyperusrotundusL.?

Cyperus rotundusis a perennial which rarely reproduces by seed but extensively reproduces by rhizomes which initially are white and fleshy with scale leaves, later becoming ligneous or "wiry."


Describe the fruit of DioscoreabulbiferaL.?

The chief means of reproduction are aerial, potato-like tubers (bulbils) located at the leaf axils.


Does european water chestnut pose any ecological threat?

The dense, floating mats ofTrapa natansrestrict light availability, reduce the oxygen content, and displace other emergent and floating vegetation. It also limits boating, fishing, swimming and other recreational activities.Trapa natansis native to Europe and Asia and was first observed in the United States in Massachusetts in the late 1800s.


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


Is this plant invasive to the United States?


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


Does tree-of-heaven pose any ecological threat?

Ailanthus altissimaforms dense, clonal thickets which displace native species and can rapidly invade fields, meadows, and harvested forests. This invasive tree species is extremely tolerant of poor soil conditions and can even grow in cement cracks.Ailanthus altissimais not shade tolerant, but easily invades disturbed forests or forest edges causing habitat damage. Introduced as an ornamental, it was widely planted in cities because of its ability to grow in poor conditions. Management and control efforts for this species continue across the United States at great economic cost.


Describe the foliage of AlyssumcorsicumDuby?

Leaves are somewhat rounded. Leaves have tiny hairs on them. Most of the plant’s leaves begin to drop when the flowers begin to bloom.


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


Is wild celery native to the United States?


What is the scientific name of sycamore maple?


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


What is the growth habit of russian thistle?


Does TribulusterrestrisL. pose any ecological threat?

Plants invade roadsides, pastures, fields and other disturbed areas. Plants are toxic to sheep and other grazers.


Describe the flowers of Fatouavillosa(Thunb.) Nakai?

Flowering occurs in the summer and fall. Flowers are light green, unisexual, apetalous and occur in axillary cymes.


Describe the flowers of small broomrape?

Flowers, borne on terminal clusters, are snapdragon-like, with 0.5 in. (1.3 cm) long, purple-tinged petals. Flowering occurs in the winter and spring.


What is the scientific name of canadian horseweed?


What is the common name of Urticadioicassp. dioicaL.?


Describe the flowers of Kummerowiastipulacea(Maxim.) Makino?

Flowers are pink, purple and white, 0.2-0.3 in. (5-8 mm) long and occur either singly or in groups of up to 5 in a spike-like raceme.


Is BellisperennisL. native to the United States?


What is the growth habit of Carpobrotusedulis(L.) N.E. Br?


Describe the flowers of PastinacasativaL.?

Flowering occurs from May to June, when hundreds of yellow flowers develop. Flowers are arranged in an umbel.


Describe the fruit of Securigeravaria(L.) Lassen?

Seed pods are segmented, pointed, borne in crown-like clusters. The straw colored seeds are less than 0.3 in. (0.9 cm) long, round, flat, and winged.


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

Category 2 (Alabama), Invasive (North Carolina), Prohibited (Wisconsin)


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


What is the growth habit of HydrangeapaniculataSieb.?


Is alligatorweed native to the United States?


Is RosacinnamomeaL. native to the United States?


Does CommelinabenghalensisL. pose any ecological threat?

Commelina benghalensisinvades areas with moist soil including roadsides, grasslands and other disturbed areas. It is especially problematic in pastures and crop fields where it forms dense, pure stands that can smother other plants such as low-growing crops.Commelina benghalensisis native to Asia and Africa and was first found in the United States in 1963.


Describe the foliage of Epipactishelleborine(L.) Crantz?

Leaves are alternate, clasping, dark green, 1.6-7.1 in. (4-18 cm) long, elliptic to lance shaped, and hairy. Flowering stem is green to purplish and usually short hairy.


What is the growth habit of hairy nightshade?


Is showy milkweed native to the United States?


What is the common name of Ludwigiapeploidesssp. glabrescens(Kuntze) P.H. Raven?


Flowers are held singly at the top of a long stalk with 5 pink to purple petals. Five pointed sepals extend past the edge of the flower. It blooms through the summer.


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


Where can I view images of BromusinermisLeyss.?


What is the growth habit of KyllingabrevifoliaRottb.?


Describe the fruit of SonchusarvensisL.?

Fruits are reddish, ribbed and have a tuft of hair at the top.


Flowering occurs in late summer to early fall, when a green (eventually straw colored), bristly inflorescence develops. The inflorescence resembles a foxtail, hence the common name.


Leaves are lance shaped, smooth and 1-4 in. (2.5-10.2 cm) long. They are arranged alternately along the stem, becoming shorter and more ovate towards the top of the stem.


Describe the foliage of AegopodiumpodagrariaL.?

The basal and lower leaves have long petioles. There are usually 9 leaflets per lower leaf, although this can vary. Each leaflet is ovate with an acute or acuminate apex. The bases of these leaflets can be rounded or cordate. The lower leaflets are 1-3 in. (3-8 cm) long and have a serrate margin. The upper leaflets are similar to the lower leaflets, but are smaller and ternate in their arrangement, and have shorter petioles.


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 purple starthistle?


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


What is the scientific name of purple mombin?


What is the growth habit of california burclover?


Is slenderflower thistle native to the United States?


The flowers are yellow and occur in a panicle with spikelets in a compact cluster on one side of the rachilla. Flowers bloom from May to August.


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


Describe the flowers of AegopodiumpodagrariaL.?

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.


What is the growth habit of CyperusbrevifolioidesThieret & Delahouss?


What is the growth habit of lady's-mantle?


What is the growth habit of Dipsacussativus(L.) Honckeny?


Is knotroot foxtail native to the United States?


What is the scientific name of mediterranean sage?


What is the growth habit of Cenchruslongispinus(Hack.) Fern?


Where can I view images of ArtemisiastellerianaBess.?


What is the scientific name of bohemian knotweed, hybrid japanese knotweed?


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


Is this plant invasive to the United States?


What is the scientific name of italian stone pine?


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


Is montbretia native to the United States?


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


Is CentaureanigrescensWilld native to the United States?


What is the growth habit of Pseudotsugamenziesii(Mirbel) Franco?


Where can I view images of himalayan blackberry?


What is the growth habit of CestrumnocturnumL.?


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


What is the scientific name of cutleaf evening-primrose?


Is english violet native to the United States?


Describe the appearance of LamiumamplexicauleL.?

Lamium amplexicauleis is a cool season annual weed in the mint family (Lamiaceae). It has square stems that reach 6-15 in. in height. Unlike many plants in the mint family, henbit does not have a strong or distinctive odor. Henbit has a fibrous root system.


What is the growth habit of SinapisarvensisL.?


Describe the flowers of Lonicerax bellaZabel [morrowii × tatarica]?

Flowering occurs from May through June. Paired flowers appear in the axils of the leaves. Flowers are usually pink and often turn yellow with age.


Does chamber bitter pose any ecological threat?

P. urinariacan be found in a variety of different habitat types such as dry fields, roadsides, wastelands, and forest margins.P. urinariais a symptomless carrier and potential host ofRastonia solanacearumin Taiwan. It can be found naturalized throughout the tropics.


What is the growth habit of PassiflorafoetidaL.?


Is this plant invasive to the United States?


Where can I view images of peruvian peppertree?


What is the growth habit of ErigeroncanadensisL.?


What is the scientific name of panama crowngrass?


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

Leaves are dark green and lanceolate to oblong-lanceolate. They are glabrous above, but their undersides have short, white hairs. They may be pinnatifid and very prickly. Basal leaves are 5-8 in. (12-20 cm) long. Leaves are usually sessile to slightly clasping. Leaf characteristics are variable across different varieties and subspecies.


What is the growth habit of common teasel?


What is the common name of TaraxacumerythrospermumAndrz. ex Besser?


Describe the appearance of OnopordumacanthiumL.?

Onopordum acanthiumis an herbaceous biennial plant that can grow up to about 6.5 ft. (2 m) in height. The plant is coarse, many-spined and is highly branched. The stems ofO. acanthiumare winged. The whole plant is densely tomentose, giving it a bluish-white appearance.


Albizia julibrissininvades any type of disturbed habitat. It is commonly found in old fields, stream banks, and roadsides. Once established, mimosa is difficult to remove due to the long lived seeds and its ability to re-sprout vigorously.Albizia julibrissinis native to Asia and was first introduced into the U.S. in 1745. It has been widely used as an ornamental.


Where can I view images of deodar cedar?


The leaves are opposite and 1-3 in. (2.5-7.5 cm) long. They are 3-lobed, with the terminal lobe elongated. The margins of the leaves are doubly serrate. This plant leafs out early in the spring. The fall color of the leaves is usually red, but some are bright yellow.


Describe the appearance of Hygrophilapolysperma(Roxb.) T. Anders.?

Hygrophila polyspermamay be annual or perennial depending on location. The four angled stems grow from 4-8 in. (10-20 cm) tall and are often prostrate. Stems are slightly swollen above the nodes. It is native to temperate and tropical Asia, which includes China and India. It is cultivated in some areas.


What is the growth habit of giant foxtail?


What is the common name of Emexspinosa(Linnaeus) Campdera?


Describe the flowers of ClematisternifloraDC?

White, fragrant, four-petaled flowers appear in the late summer through the fall.


Describe the flowers of LespedezabicolorTurcz.?

Flowering occurs in the summer, when purple, pea-like flowers develop in clusters. Flowers are less than 0.5 in. (1.3 cm) long.


What is the growth habit of PaspalumurvilleiSteud.?


What is the scientific name of queen-devil hawkweed?


Describe the appearance of puncturevine?

Tribulus terrestrisis an annual, low-spreading forb native to the Mediterranean.


Is purple nutsedge native to the United States?


Describe the fruit of EpilobiumhirsutumL.?

E. hirsutumreproduces by seeds, rhizomes and stolons. Fruits are narrow, pubescent, dehiscent seed pods from 1-3.5 in. (2.5-9 cm) long that contain numerous seeds. Seeds have long white hairs that aid in dispersal by wind.


Describe the appearance of common ragweed?

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


What is the U.S. Department of Agriculture (USDA) plant symbol for sprenger's asparagus fern?


Describe the appearance of Perillafrutescens(L.) Britton?

Perilla frutescensis an erect, annual freely branching herbaceous plant that grows from 1-6.6 ft. (0.3-2 m) tall. The square stems are villose, purple or green with four parallel grooves. Dried stalks can persist through winter. It is native to Eastern Asia.


Is boxelder native to the United States?


Describe the foliage of Achyranthesjaponica(Miq.) Nakai?

Ovate-elliptic leaves are opposite and simple. Margins are entire and repand (slightly wavy). The base of the leaf is tapering and the apex is acute to acuminate.


What is the growth habit of TyphaangustifoliaL.?


Is AucubajaponicaThunb. native to the United States?


What is the common name of RaphanussativusL.?


What is the common name of CalophyllumantillanumBritt?


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 tansy ragwort?

Jacobaea vulgarisis a biennial to short lived perennial herb native to Eurasia. Plants can reach 1-4 ft. (0.3-1.2 m) tall.


What is the scientific name of cuban bulrush?


Is BischofiajavanicaBlume native to the United States?


What is the scientific name of oleander?


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.


What is the common name of GarnotiastrictaBrongn.?


Where can I view images of common mullein?


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

Category 2 (Alabama), Invasive (Delaware)


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


What is the common name of PrunuslusitanicaL.?


Is Fragariavescassp. vescaL. native to the United States?


Describe the foliage of Microstegiumvimineum(Trin.) A. Camus?

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


Describe the fruit of LythrumvirgatumL.?

Seeds are produced in rounded capsules about 0.24 in. (6 mm) in length. The capsules open to release more than a hundred tiny, light brown seeds about the size of poppy seeds. Water, wind, wildlife, and humans easily spread the lightweight seeds that are shed throughout the winter. Purple loosestrife is a prolific seed producer; a single mature plant can produce several million seeds. When purple loosestrife densities are high, billions of seeds are produced per acre. Seed viability is greater than 90 percent and seeds can remain viable in the soil for many years.


Where can I view images of DaucuscarotaL.?


Flowering occurs during the summer with white, clover-like heads in the axils of the leaves.


What is the scientific name of frozen green buckthorn?


What is the growth habit of OenotheralaciniataHill?


Describe the foliage of PhytolaccaamericanaL.?

Leaves are large, alternately arranged, smooth, elliptical, and range from 5-20 in. (12.7-50.8 cm) in length. The underside of the leaves, the stems, and the veins are a pink color.


Where can I view images of common bugloss?


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


What is the growth habit of GlechomahederaceaL.?


What is the common name of ChenopodiummuraleL.?


What is the growth habit of Wisteriasinensis(Sims) DC.?


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


Describe the foliage of buttercup oxalis?

The trifoliate (clover-like) leaves arise from an enlarged basal stem tip, and are arranged in a loose basal rosette. Petioles are usually less than 4.7 in. (12 cm) long. Each leaflet measures less than 1.4 in. (3.5 cm) in length and are often spotted with hairy lower surfaces.


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


Where can I view images of common chickweed?


Where can I view images of giant foxtail?


What is the growth habit of ViciacraccaL.?


What is the growth habit of venice mallow?


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


Is this plant invasive to the United States?


Is beach wormwood native to the United States?


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


Describe the foliage of Perillafrutescens(L.) Britton?

Opposite leaves are membranous or herbaceous, broadly ovate or orbicular, 2.76-5.12 in. long by 1.77-3.94 in. wide (7-13 cm X 4.5-10 cm), with mucronate tips, a rounded or broad cuneate bases, and dentate margins. The pilose surface of the leaves may be green or purple on both sides. Each leaf has seven to eight pairs of lateral veins, which are closer together near the base. The veins on the upper surface are slightly raised, more so on the underside. The petiole is flat and villose.


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


What is the growth habit of dog-strangling vine, european swallowwort?


Is sacred datura native to the United States?


Does sawtooth oak pose any ecological threat?

Quercus acutissimahas been found in recent years to escape plantings and establish in nearby forests, potentially displacing native vegetation. It is native to Asia and has been widely planted in the United States as an ornamental and as food for wildlife. It is no longer recommended for planting in the United States because of its potential impact on native ecosystems.


What is the growth habit of garden loosestrife?


What is the growth habit of GeumurbanumL.?


What is the growth habit of chinese holly?


Describe the flowers of AegilopsgeniculataRoth?

The inflorescence is made up of racemes. The fertile spikelets are urn shaped. Glumes have distinctive awns from 0.8-1.4 in. (2-3.5 cm) long.


What is the common name of LepidiumruderaleL.?


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


Is SolanumtampicenseDunal native to the United States?


Where can I view images of night jessamine?


What is the common name of BromushordeaceusL.?


Describe the foliage of HedychiumgardnerianumShepard ex Ker-Gawl.?

The leaves are bright green that clasp the tall steams. Leaves are pear shaped to elliptic or lance shaped to 15.7 in. (40 cm) long and 5.9 in. (15 cm) wide. Leaves are entire (having smooth edges) or are very shallowly lobed, and hairless.


What is the growth habit of PhoenixdactyliferaL.?


Describe the foliage of longspine sandbur?

C. longispinusleaves may reach 8 in. (20.3 cm) in length and 0.24 in. (6 mm) in width. The upper surface is rough and there are no hairs on the lower surface. The ligule is a fringe of hairs and is about 0.04 in. (1 mm) long.


Is this plant invasive to the United States?


Describe the appearance of bittersweet nightshade?

Solanum dulcamarais a perennial vine or scrambling shrub with slender stems that can reach up to 6.6 ft. (2 m) tall, either erect or clambering.


Where can I view images of Pityrogrammacalomelanos(L.) Link?


Describe the appearance of cypress spurge?

Euphorbia cyparissiasgrows up to 12 in. (30.5 cm) tall. This herbaceous, perennial plant invades open disturbed areas throughout the United States. All parts of the plant exude a white, milky sap when broken.


Leaves are opposite, dark green, glossy, oval to lance-shaped, thick-textured; may be variegated.


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


Is white horehound native to the United States?


Is MalvaverticillataL. native to the United States?


Is ThunbergialaurifoliaLindl. native to the United States?


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


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

Leaves are alternate, compound (with three, usually lobed, leaflets), hairy underneath and up to 5.4 in. (15 cm) long.


What is the scientific name of cream garland-lily?


What is the growth habit of european black alder?


Does PhyllanthusurinariaL. pose any ecological threat?

P. urinariacan be found in a variety of different habitat types such as dry fields, roadsides, wastelands, and forest margins.P. urinariais a symptomless carrier and potential host ofRastonia solanacearumin Taiwan. It can be found naturalized throughout the tropics.


Where can I view images of VeronicachamaedrysL.?


What is the growth habit of PassifloraedulisSims?


Describe the appearance of IrispseudacorusL.?

Iris pseudacorusis a herbaceous perennial that can grow up to 3-4 ft. (0.9-1.2 m) in height.


What is the scientific name of everblooming acacia?


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


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 hairy wallaby grass native to the United States?


Describe the flowers of LigustrumamurenseCarrière?

Flowers are creamy white and held in panicles about 2 in (5.1 cm) long. Flowers have an aroma that many people find unpleasant. Flowers bloom from May-June.


What is the growth habit of BidenscernuaL?


Is Spartinafoliosa x alterniflora native to the United States?


What is the growth habit of CyperusesculentusL.?


Is longfruited primrose-willow native to the United States?


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


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


What is the common name of PassifloraligularisJuss.?


Describe the fruit of european black alder?

Fruits are obovate samaras. The wings are reduced to narrow thinkened ridges.


What is the scientific name of bighead knapweed?


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

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


What is the scientific name of hottentot fig?


Describe the appearance of bohemian knotweed, hybrid japanese knotweed?

Fallopia x bohemicais a perennial that can grow from 6-12 ft. (1.8-3.7 m) tall.


Describe the foliage of european wand loosestrife?

Purple loosestrife leaves are 2-5 in. (5-12 cm) long and narrow with a rounded or heart-shaped base, and smooth-edged. The stalkless leaves are arranged opposite or sometimes alternate along the stem. The lower leaves often form a whorl around the stem.


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


Is this plant invasive to the United States?


What is the growth habit of LoniceratataricaL.?


What is the growth habit of spotted spurge?


What is the growth habit of JuncusplanifoliusR. Br.?


What is the common name of Mosladianthera(Buch.-Ham. ex Roxb.) Maxim.?


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


Where can I view images of petty spurge?


Where can I view images of tasmanian wallaby grass?


Where can I view images of CecropiaobtusifoliaBertol.?


What is the scientific name of long's sedge?


What is the scientific name of carline thistle?


Describe the appearance of perennial veldtgrass?

Ehrharta calycinais a perennial grass that can grow up to 4 ft. (1.2 m) tall.


Where can I view images of CyperusesculentusL.?


Where can I view images of wintergreen barberry?


Is IsatistinctoriaL. native to the United States?


What is the growth habit of myrtle spurge?


Does mugwort pose any ecological threat?

A. vulgarisgrows easily in high-elevation pastures, forest edges, valleys, hillside wasteland, ditches, and roadsides. There are species of Artemisia native to North America.


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


Is javanese glorybower native to the United States?


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


What is the growth habit of ButomusumbellatusL.?


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


What is the scientific name of waxy mannagrass?


Describe the flowers of ArdisiaellipticaThunb?

Most flowering occurs in the summer, but flowering can continue year-round. The flowers are small, pink, star-shaped and hang in clusters from the axils of the leaves.


What is the growth habit of CarexpendulaHuds.?


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


Describe the appearance of Ampelopsisglandulosavar. brevipedunculata(Maxim.) Momiy.?

Ampelopsis glandulosa var. brevipedunculatahas become a serious invader of the eastern United States and closely resembles native species of grape. It is a deciduous, woody vine that climbs to heights of more than 20 ft. (6.1 m). These branched tendril-bearing, woody vines (native grapes have unbranched tendrils) have lenticels and white piths that are continuous across the nodes. Bark is ridged and furrowed, whereas native grape bark is shredded.


Describe the fruit of MedicagolupulinaL.?

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


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


Does Bassiascoparia(L.) A.J. Scott pose any ecological threat?

B. scopariawas probably introduced as an ornamental plant in the 1800's. It can tolerate a wide range of soils, temperatures and moisture conditions. When it matures the stem breaks off close to the base and becomes a tumbleweed which helps disperse the seed.B. scopariacan be found infesting roadsides, fields, crop fields, ditch banks, seasonal wetlands and other disturbed habitats.


Where can I view images of PistiastratiotesL.?


What is the scientific name of brazilian peppertree?


What is the common name of Kalanchoepinnata(Lam.) Pers.?


Is this plant invasive to the United States?


Is Sorghumbicolorssp. drummondii(Nees ex Steud.) de Wet & Harlan native to the United States?


Describe the appearance of longspine sandbur?

Cenchrus longispinusis an annual grass with conspicuous burs along the seedhead. Sheaths may reach 20 in. (51 cm) in height.C. longispinusstems are somewhat flattened and hairless and has a fibrous root system.C. longispinusis native to North America, Mexico and South America.


Describe the appearance of common teasel?

Dipsacus fullonuma biennial plant that exists as a basal rosette until flower stems develop.


What is the U.S. Department of Agriculture (USDA) plant symbol for Broussonetiapapyrifera(L.) L'Hér. ex Vent.?


What is the common name of Cayratiajaponica(Thunb.) Gagnepain?


Where can I view images of venice mallow?


Does japanese dodder pose any ecological threat?

Many species of dodder, some native and some exotic, occur in the United States.Cuscuta japonicaparasitizes host plants by penetrating the vascular tissue of the host with structures called haustoria. Severe infestations can kill host plants. It is native to Asia and several infestations have recently been found in Texas, Florida, and South Carolina.


Where can I view images of asiatic dayflower?


Describe the flowers of sulfur cinquefoil?

Flowering occurs from May to July, when sulfur yellow flowers develop in open, flat-topped inflorescences at the apex of the stems. Flowers have 5 petals, each 0.2-0.4 in. (0.5-1 cm) long, and 25-30 stamens.


Describe the foliage of russian thistle?

Leaves are alternate and narrow. Upper leaves have a sharp point at the apex and are 1.3-2 in. (3.3-5.1 cm) long.


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 SolanumtorvumSw.?


Is Gazanialinearis(Thunb.) Druce native to the United States?


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


Describe the appearance of perennial sowthistle?

Sonchus arvensisis a perennial herbaceous plant. Stems can reach 4.9 ft. (1.5 m) in height and contain milky sap.


Where can I view images of TrifoliumarvenseL.?


Describe the appearance of korean lespedeza?

Kummerowia stipulaceais an annual freely branching herbaceous plant with upward pointing hairs. The plant can be procumbent to erect and can reach up to 24 in. (61 cm) in height. It has shallow taproots.


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


Is this plant invasive to the United States?


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


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

Category 1 (Alabama), Invasive (IPC) (Missouri), Invasive (North Carolina)


What is the growth habit of LactucaserriolaL.?


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


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


Where can I view images of LythrumsalicariaL.?


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


Describe the flowers of yellow nutsedge?

The inflorescence is a terminal clustered spikelet. Flowers are yellowish to brownish in color.


Where can I view images of EquisetumarvenseL?


The fruit is a ovoid capsule that splits, releasing 100,000 to 180,000 seeds from the parent plant, that germinate in water.


What is the scientific name of reed canarygrass?


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


Is waxy mannagrass native to the United States?


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


Is wayside speedwell native to the United States?


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


Where can I view images of RubusulmifoliusSchott?


What is the scientific name of greater creeping spearwort?


What is the scientific name of illyrian cottonthistle?


Describe the fruit of Bassiascoparia(L.) A.J. Scott?

The fruit usually has knobby lobes or short horizontal wings. Seeds are egg shaped, flattened, and about 0.04-0.08 in (1–2 mm).


Where can I view images of SalviniamolestaD. S. Mitchell?


What is the scientific name of spreading hedgeparsley?


What is the scientific name of paper-mulberry?

Broussonetiapapyrifera(L.) L'Hér. ex Vent.


Is european birch native to the United States?


What is the scientific name of yellowtuft?


What is the scientific name of longspine sandbur?


Describe the flowers of SonchusarvensisL.?

Flowering occurs in June to October, when yellow, tight, dandelion-like flower heads develop at the tips of the branches. Flowers open 2-3 hours after sunrise and close about noon.


What is the scientific name of common salsify?


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


Describe the appearance of LigustrumamurenseCarrière?

Ligustrum amurenseis a dense, erect, multi-stemmed, fast-growing, deciduous shrub (semi-evergreen in mild winter areas) that grows up to 12-15 ft (3.7-4.6 m) tall. It is native to Northern China.


What is the growth habit of Silybummarianum(L.) Gaertn.?


Is this plant invasive to the United States?


Ligustrum spp.can easily escape cultivation to invade adjacent areas and can form dense monospecific thickets. Several Ligustrum species have become common invaders of cultivated landscapes, disturbed areas and wildlands throughout the U.S.


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


Is false yellowhead native to the United States?


Is silver hairgrass native to the United States?


What is the scientific name of wild garlic?


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


What is the growth habit of PaspalumvaginatumSw.?


Is AcaciadealbataLink native to the United States?


What is the growth habit of algerian ivy?


Describe the fruit of denseflower cordgrass?

Seeds are 0.25-0.4 in. (0.6-1 cm) long and smooth. S. densiflora reproduces by seed and rarely rhizomes.


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


What is the growth habit of Osmanthusheterophyllus(G. Don) P.S. Green?


Where can I view images of Sennaoccidentalis(L.) Link?


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


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


Where can I view images of ChlorisbarbataSw.?


What is the common name of Hyacinthoideshispanica(Mill.) Rothm.?


What is the growth habit of red mangrove?


What is the growth habit of false strawberry?


Is this plant invasive to the United States?


Describe the fruit of floating bladderwort?

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


Is Vitexagnus-castusL. native to the United States?


What is the common name of Tripleurospermummaritimum(L.) W.D.J. Koch?


Is CotoneastercoriaceusFranch. native to the United States?


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


Describe the appearance of OleaeuropaeaL.?

Olea europaeais a perennial tree that can grow from 26.2-49.2 ft. (8-15 m) tall.


Does VincamajorL. pose any ecological threat?

Found around old homesites and scattered in open to dense canopied forests. Forms mats and extensive infestations even under forest canopies by vines rooting at nodes. Introduced from Europe in 1700s. Ornamental ground cover, commonly sold and planted by gardeners.


Is italian woodbine native to the United States?


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


What is the scientific name of weeping willow?


Describe the appearance of AegilopsgeniculataRoth?

Aegilops geniculatais an annual grass that grows in tufts. The rounded stems are geniculate, generally upright and grow from 4-12 in. (10-30 cm) long.A. geniculatais native to Africa, temperate Asia and Europe.


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


Does wetland nightshade pose any ecological threat?

Solanum tampicense, being tolerant of full sun and full shade, can invade many types of wetland ecosystems such as cypress swamps and river edges. It is capable of forming extensive, dense stands that displace native vegetation. It is native to the West Indies and Central America. It was accidentally introduced into Florida. The ability ofSolanum tampicenseto form dense thickets that are difficult for other species to penetrate suggests this noxious weed has the potential to invade and alter many of Florida’s wetland habitats as well as impede access to and use of water resources (Fox and Wigginton, 1996; Fox and Bryson, 1998)


What is the common name of PassifloratarminianaCoppens & V. E. Barney?


What is the scientific name of oriental mangrove?


What is the U.S. Department of Agriculture (USDA) plant symbol for Leucaenaleucocephala(Lam.) de Wit?


What is the growth habit of white snakeroot?


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


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


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


Is this plant invasive to the United States?

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


The fruit are small flattened ovoids with hard coats. They usually germinate in late spring to early summer.


Is red valerian native to the United States?


Where can I view images of CentaureajaceaL.?


What is the growth habit of CentauriumerythraeaRafn?


Describe the foliage of CentaureajaceaL.?

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


What is the scientific name of east indian almond?

Terminaliamyriocarpavan Heurck & Muell.-Arg.


Describe the fruit of Microstegiumvimineum(Trin.) A. Camus?

Fruit is produced from late September through early October.


Is BromusdiandrusRoth native to the United States?


Is PicrishieracioidesL. native to the United States?


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


Describe the appearance of PeganumharmalaL.?

Peganum harmalais a perennial plant with a low-growing, bushy habit reaching 2-3 ft. (0.6-0.9 m) in height.


What is the growth habit of woman's tongue tree?


What is the growth habit of creeping buttercup?


What is the growth habit of italian arum?


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

Aquatic Nuisance (Class 2, Regulated) (North Dakota), Category 1 (Alabama), Class C (Alabama), Invasive (North Carolina), Invasive, Prohibited (Connecticut), Invasive, Restricted (Michigan), Prohibited (Minnesota), Prohibited (New York), Restricted (Wisconsin)


What is the growth habit of BellisperennisL.?


Where can I view images of cup rosinweed?


Where can I view images of PhoenixreclinataJacq.?


What is the common name of PopulustremulaL.?


What is the common name of Malusbaccata(L.) Borkh.?


What is the scientific name of white swallowwort?


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


Is this plant invasive to the United States?


Where can I view images of creeping bentgrass?


Where can I view images of CommelinacommunisL.?


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


Leaves are thick, 1.6 in. (4 cm) long, lanceolate, opposite, leathery, somewhat hairy, and dark green on upper surface and greyish green on lower surface.


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


What is the growth habit of ViburnumplicatumThunb.?


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


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


Where can I view images of CestrumnocturnumL.?


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


Describe the flowers of CyperusesculentusL.?

The inflorescence is a terminal clustered spikelet. Flowers are yellowish to brownish in color.


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


What is the growth habit of NelumboluteaWilld.?


Is HibiscustrionumL. native to the United States?


Describe the flowers of Hirschfeldiaincana(L.) Lagrèze-Fossat?

Flower petals are 0.2-0.4 in. (5-10 mm) long with 0.12-0.2 in. (3-5 mm) filaments and 0.04-0.06 in. (1-1.5 mm) anthers. Flowers bloom from April to November.


Is CentaureanigraL. native to the United States?


What is the growth habit of swainsonpea?


Where can I view images of cure for all?


What is the common name of ScillasibericaHaw.?


What is the growth habit of SalixviminalisL.?


Where can I view images of AsphodelusfistulosusLinnaeus?


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


What is the invasive/noxious status of Puerariamontanavar. lobata(Willd.) Maesen & S. Almeida and where is it classified as such?

Invasive (DOC) (Missouri), Invasive (North Carolina), Potentially Invasive, Prohibited (Connecticut), Prohibited (New York), Prohibited (Wisconsin)


Is CardamineimpatiensL. native to the United States?


Is this plant invasive to the United States?


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

Class A (Alabama), Invasive, Prohibited (Connecticut), Prohibited (Wisconsin)


What is the common name of DelaireaodorataLem?


What is the growth habit of oriental virginsbower?


Is carline thistle native to the United States?


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


Describe the appearance of IsatistinctoriaL.?

Isatis tinctoriais a biennial member of the mustard family that can grow from 1-4 ft. (0.3-1.2 m) tall.


What is the common name of AlyssumcorsicumDuby?


Is bristletips native to the United States?


What is the growth habit of RubusargutusLink?


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

Invasive (Delaware), Invasive (IPC) (Missouri), Invasive, Prohibited (Connecticut), Prohibited (New York), Restricted (Wisconsin)


What is the scientific name of currant tomato?


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


Does Vitexagnus-castusL. 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.


Describe the flowers of Securigeravaria(L.) Lassen?

Flowering occurs in the summer. The pea-like, fragrant flowers are white to pink to purple and resemble a large clover flower because they are found in long-stalked clusters.


Is Cenchruspurpureus(Schumach.) Morrone native to the United States?


Where can I view images of Sesbaniavesicaria(Jacq.) Ell.?


Berries are red ellipsoids which are less than 0.3 in. (10 mm) in length and contain 1-3 small black seeds. The fruit is dispersed by birds and other wildlife.


Describe the fruit of Cirsiumvulgare(Savi) Ten.?

Fruits have several bristles on the tip and are up to 0.2 in. (5 mm) long.


What is the scientific name of everlasting peavine?


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


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 thymeleaf sandwort?


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


Where can I view images of HedychiumgardnerianumShepard ex Ker-Gawl.?


What is the common name of FallopiaconvolvulusL.?


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


Describe the foliage of AcerginnalaMaxim.?

The leaves are opposite and 1-3 in. (2.5-7.5 cm) long. They are 3-lobed, with the terminal lobe elongated. The margins of the leaves are doubly serrate. This plant leafs out early in the spring. The fall color of the leaves is usually red, but some are bright yellow.


Is oriental virginsbower native to the United States?


What is the scientific name of weeping lantana?


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


What is the invasive/noxious status of Caulerpataxifolia(Vahl) C. Agardth and where is it classified as such?

Noxious (United States), Prohibited (New York), Prohibited (Wisconsin)


What is the scientific name of american lotus?


What is the growth habit of paradise poinciana?


Describe the appearance of DioscoreaalataL.?

Dioscorea alatais an herbaceous, twining vine that can grow to lengths exceeding 30 ft. (9.1 m). It invades open to shady areas in the extreme southeastern United States.


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


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


What is the growth habit of princess-feather?


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


What is the growth habit of AndropogonvirginicusL.?


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


Is this plant invasive to the United States?


Where can I view images of TamarixgallicaL.?


Where can I view images of big periwinkle?


What is the growth habit of Pseudognaphaliumluteoalbum(L.) Hilliard & Burtt?


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


What is the common name of SchinusmolleL.?


What is the invasive/noxious status of Lespedezacuneata(Dum.-Cours.) G. Don and where is it classified as such?

Category 1 (Alabama), Invasive (DOC, IPC) (Missouri), Invasive (North Carolina), Prohibited (New York), Prohibited (Wisconsin)


What is the scientific name of asian nakedwood?


Where can I view images of Acaciamearnsiide Wildeman.?


What is the growth habit of PyrusbetulifoliaBunge?


What is the common name of Cajanuscajan(L.) Millsp.?


What is the common name of LespedezabicolorTurcz.?


What is the growth habit of SolanumamericanumP. Mill.?


Does hairy willowherb pose any ecological threat?

E. hirsutumis an extremely widespread and variable species that spreads aggressively by vegetative growth in sunny open wetland habitats, although it can also invade uplands. It can form monocultures in natural wetlands, crowding out native species.


Does witchweed pose any ecological threat?

Striga asiaticacan parasitize important agricultural crops such as corn, sorghum, sugar cane and rice. The host plant's nutrients are depleted and energy is spent supporting the parasitic witchweed. Infestations reduce yields and contaminate crops. Witchweed is native to Asia and Africa and was first identified in the United States, in the Carolinas, in 1955. It is listed as a Federal Noxious Weed.


What is the growth habit of EuphorbiamyrsinitesL?


Where can I view images of Elsholtziaciliata(Thunb.) Hyl.?


Is this plant invasive to the United States?


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


Is white mulberry native to the United States?


What is the scientific name of common chickweed?


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


Flowering occurs in the summer and fall. Flowers are light green, unisexual, apetalous and occur in axillary cymes.


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


What is the growth habit of Euonymusfortunei(Turcz.) Hand.-Maz.?


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


Describe the flowers of cutleaf blackberry?

Flowers are white to dark pink with 5, 0.8-1 in. (2-2.5 cm) long, petals. Stamens are white-pink and the pistils are greenish pink. Flowering occurs from June to July.


Is sweet alyssum native to the United States?


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


Does brazilian vervain pose any ecological threat?

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


Is bladder campion native to the United States?


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


Does horsenettle pose any ecological threat?

S. carolinenseis native to the United States. All parts of the plants, except the mature fruit, are capable of poisoning livestock if eaten in sufficient quantity, however consumption rarely occurs due to the prickly stems and leaves. It is a weed of perennial crops and can be weedy in reduced-tillage crops like corn and small grains. It grows best on well-drained soils. Use gloves when handling the plant.


What is the growth habit of redfruit passionflower?


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


Is this plant invasive to the United States?


What is the growth habit of common chickweed?


Is CyperushaspanL. native to the United States?


Does common teasel pose any ecological threat?

Dipsacus fullonumfavors disturbed sites such as roadsides, ditches, waste places, riparian sites, fields and pastures in most of the continental United States. Only recently wasDipsacus fullonumdistinguished from fullers teasel which was once cultivated for the dried flower heads used in wool processing. It is native to Europe.


Where can I view images of egyptian broomrape?


Describe the fruit of AegopodiumpodagrariaL.?

The brown fruits oblong-ovoid, laterally flattened and 0.12-0.16 in. (3-4 mm) long.


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


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


Is Rytidospermacaespitosum(Gaudich.) Connor & Edgar native to the United States?


What is the growth habit of Catharanthusroseus(L.) G. Don?


Flowering occurs in late summer to early fall, when plants are most easily recognized because of the large, dense flower plumes that develop at the tops of the culms. The plums can grow up to 3 ft. (0.9 m) in length.


What is the common name of ChlorisbarbataSw.?


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


Purple to white, pea-like flowers are arranged in terminal or axillary racemes and are present from June to July.


What is the growth habit of birdseye pearlwort?


What is the growth habit of flowering rush?


Is purple cudweed native to the United States?


What is the growth habit of amur privet?


What is the common name of PassifloraedulisSims?


What is the growth habit of Stellariapallida(Dumort.) Crépin?


Describe the foliage of Glyceriamaxima(Hartman) Holmb.?

Leaves are 12-23.6 in. (30-60 cm) long, 0.2-0.8 in. (6-20 mm) wide, with an acute apex and a prominent midrib. The leaf margins have stiff, short hairs. The leaf sheaths are rough in texture with a reddish-brown band at the leaf junction.


What is the scientific name of stinkwort?


Is this plant invasive to the United States?

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


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


What is the scientific name of narrowleaf bittercress?


Is SalixcinereaL. native to the United States?


Describe the flowers of rough mannagrass?

Flowering occurs from June through August, when flowers appear in 6-12 in. (15-30 cm) long open panicles. The panicle branches have short, stiff hairs like those on the leaf margins.


Describe the appearance of DioscoreabulbiferaL.?

Dioscorea bulbiferais an herbaceous, twining vine that can grow to lengths exceeding 60 ft. (18 m). It invades open areas in the sub-tropical southeastern United States.


What is the scientific name of spiny emex?


What is the growth habit of PyruscalleryanaDecne.?


Is american evergreen native to the United States?


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


Describe the fruit of common viper's bugloss, blueweed?

Seeds are 0.8-0.12 in. (2-3 mm) long, brownish grey in color, and have a rough texture.


What is the scientific name of common filbert?


What is the growth habit of CyperusiriaL.?


What is the growth habit of ColuteaarborescensL.?


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


Does marsh dayflower pose any ecological threat?

M. keisakinvades water edges and marshes and often grows immersed. It forms dense mats that out-compete native vegetation.M. keisakis native to temperate and tropical Asia and was accidentally introduced into the United States, in South Carolina, around 1935.


What is the scientific name of wild buckwheat?


Where can I view images of french tamarisk?


Describe the fruit of MiconiacalvescensDC.?

Fruits are round berries that are globose, purple to black when ripe and 0.24-0.28 in. (6-7 mm) in diameter with seeds that are ovoid to pyramidal 0.02 (0.5 mm) long.


What is the invasive/noxious status of winged burning bush and where is it classified as such?

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


What is the common name of MeliaazedarachL.?


What is the growth habit of Digitariasanguinalis(L.) Scop?


What is the growth habit of IrispseudacorusL.?


Is this plant invasive to the United States?


Where can I view images of narrow-leaved iceplant?


What is the growth habit of sacred bamboo?


Is cyclops acacia native to the United States?


What is the growth habit of CalophylluminophyllumL.?


What is the common name of AegopodiumpodagrariaL.?


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


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


What is the growth habit of american lotus?


Is PennisetumclandestinumHochst. ex Chiov. native to the United States?


What is the scientific name of coulter pine?


Where can I view images of AgrostisstoloniferaL.?


What is the scientific name of cherry silverberry?


Is PhellodendronlavalleiDode native to the United States?


What is the growth habit of FicariavernaHuds.?


Describe the flowers of ConiummaculatumL.?

Flowers are small, white, and held in umbels about 3 in. (7.6 cm) across (appearing in early summer).


Where can I view images of broadleaf forget-me-not?


Is PsidiumguajavaL. native to the United States?


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


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


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


Leaves are alternate, stipulate (deciduous), petiolate, 1-3.9 in. (2.5-10 cm) long, 0.4-2.8 in. (1-7 cm) wide with toothed (pointed or rounded) margins.


Is longspine sandbur native to the United States?


Is Vincetoxicumrossicum(Kleopov) Barbarich native to the United States?


Is Loniceramaackii(Rupr.) Herder native to the United States?


Is this plant invasive to the United States?


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


Describe the foliage of SolanumcarolinenseL.?

Leaves are elliptic-oblong to oval, alternate, petioled, 2.5-4.5 in. (6.4-11.4 cm) long and covered on both surfaces with hairs. Leaves also emit a potato odor when crushed, and contain prominent prickles on the petiole. Stems are angled at the nodes, become woody with age, and also have prickles and hairs.


What is the common name of IpomoeacoccineaL.?


What is the scientific name of creeping bellflower?


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


Does HypericumcanarienseL. pose any ecological threat?

Hypericum canariensecan be found in wet or moist locations including coastal scrub, and forests. It is native to the western 5 of the Canary Islands.


What is the scientific name of red morning-glory?


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


Describe the foliage of CarduusnutansL.?

Leaves are green and lanceolate to oblong-lanceolate. They are often pinnatifid and are very prickly. Leaves are usually sessile to slightly clasping. Basal leaves are 4-16 in. (10-40 cm) long. Leaf characteristics are variable across different varieties and subspecies.


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


Where can I view images of meadow hawkweed?


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


What is the U.S. Department of Agriculture (USDA) plant symbol for Sorghumbicolorssp. drummondii(Nees ex Steud.) de Wet & Harlan?


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


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


What is the common name of Zantedeschiaaethiopica(L.) Spreng.?


Describe the flowers of VitexrotundifoliaL. f.?

Flowering occurs throughout the year, when small clusters of violet flowers develop at the ends of the branches.


Where can I view images of SchinusmolleL.?


What is the common name of Persicariaperfoliata(L.) H. Gross?


What is the growth habit of SclerialacustrisC. Wright?


Describe the fruit of european wand loosestrife?

Seeds are produced in rounded capsules about 0.24 in. (6 mm) in length. The capsules open to release more than a hundred tiny, light brown seeds about the size of poppy seeds. Water, wind, wildlife, and humans easily spread the lightweight seeds that are shed throughout the winter. Purple loosestrife is a prolific seed producer; a single mature plant can produce several million seeds. When purple loosestrife densities are high, billions of seeds are produced per acre. Seed viability is greater than 90 percent and seeds can remain viable in the soil for many years.


Is this plant invasive to the United States?


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


What is the scientific name of yellow archangel?


Is canarygrass native to the United States?


Is creeping waterprimrose native to the United States?


What is the common name of CastillejaarvensisCham. & Schlecht?


What is the U.S. Department of Agriculture (USDA) plant symbol for smooth cat's ear?


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


What is the common name of Prosopispallida(Humb. & Bonpl. ex Willd.) Kunth?