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-winter Annual

-Reproduces by seed and Internodes

-Slender Prostrate stems that produce many branches

-Leaves are opposite

-Hairy petioles

-Produces small white flowers

-perenial

-Pink to white flowers shaped like trumpets

-Two bracts inch below flower

-Leaves are alternating and heart-shaped

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-perennial

-most reproduction done by rhizomes and tubers

triangular shaped stems (18 in tall)

-emerge in groups of 3

-grass-like leaves

-flowers are brownish or yellow spikelets

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-perennial

-reproduces by creeping rhizomes and spores

-found in riparian zones

-vertical dark green stems (3 ft high)

-hollow and bamboolike

-pinecone like fruiting heads

-segmented

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-annual

-sap is considered carcinogenic and can kill sheep

-Hair covers whole plant

-short stems with a separte stipule

-leaves are dark green and oval with red watermark

-small pinkish flowers

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-perennial

-spreads by seed and stolons off the node

-leaves aranged in trifoliate structure and are oval shaped

-often have watermark

-white flowerheads that sometimes have pink hue

-petiole has a pair of stipules light in color and membranous

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-annual

-nitrogen fixer found in alfalfa and clover

-stem branches at base and stems grow prostrate

-pubescent

-compound leaves with three oval leaflets

-leaflets are prominatly veined

-flowers are yellow in clusters

-produces black seedpods

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-biennial

-causes bleeding disease in cattle

-grows up to 6ft, stems hairless

-leaves are alternating, in 3 leaflets

-stipules are linear, joined to leaf stalk

-flowers in tall clusters from leaf axils

-has net-veined dark brown pods

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-winter annual

-stems grow up to 12 in and are pubesent

-leaves in opposite pairs, have long internodes

-leaves are kidneyshaped, with rounded teeth

-flowers are terminal spikes with axillary whorls

-red, purple, two lipped

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-annual or biennial

-has laxative qualities

-20 in long, low spreading stems

-leaves are petioled, alternating, rounded with heartshaped base

-flowers are white to pale lavender

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-annual

-seed is viable in soil for more than 50 years

-completely covered in hair

-grows from 2 to 7 ft tall

-heart shaped leaves, alternating

-flowers are yellow and orange, 5 petals fused at base

-fruits are rounded

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-perennial

-medical uses to prevent sores

-leaves spiral on woody stems

-Blades are toothed, have 5 to 7 prominant veins

-flowerheads are leaflesswith spikes of flower clusters

-flowers have narrow white stamens

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-winter annual

-commonly found in wheat fields

-stems grow 15 to 30 in tall, many tillers

-alternating leaves, auricle at base

-Cylindrical spikes, up to 12 spiklets in rachis

-glumes have several ribs with keel on one side that extends into a single awn

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-winter annual

-stems grow up to 30 in

-sheaths and leaf blades pubescent

-short ligule

-inflorescence up to 6 in, drops to oneside

-Awns turn purple with maturity

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-annual

-seeds have been used as grain in Germany, Poland

-stems are 6 in to 2 ft long

-roots along stem

-leaf blades have flat sheaths, have long stiff hairs

-sheaths are light green, finely ribbed

-inflorescence has up to 11 thin spikes, 2-6 in long

-forms in colonies

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-perennial

-believed to be alleleopathic

-stems erect 1-3 ft tall

-leaves have small auricles

-sheaths and upper part of blades have hairs

-spikelets are in tow rows on flat stem

-florets are awnless

-rhizomes are yellow or white

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-annual

-problem in grass seed production

-stems are flattened,both spreading and erect

-form in dense clusters

-leaves are bright green in color and have boatshaped tip

-inflorescence is pyramidal, produces up to 100 seeds

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-winter annual

-stems erect and 1-2 1/2 ft tall

-base of plant is purplish in color

-leaves are dark green

-leaves are rolled in bud

-prominent veins, membranous ligule

-terminal spikes, spiklets alternate along stem

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-annual

-removes large amounts of soil N

-produces many stems that grow up to 5 ft tall

-stems are red or dark purple

-leaves are absent of ligule and auricle

-panicles also red

-has crowded spikelets and awns up to 1in

-resistant to propanil (herbicide)

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-annual

-seeds can be dormant in soil for up to 10 years

-stems hollow,errect, up to 4ft tall

-leaves have open sheath, membranous ligule

-seedlings twist counterclockwise

-inflorescence is open panicle

-spikeslets are drooping,disarticulated above glume

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-annual

-important foodsouce for many bird species

-medicinal uses for native americans

-stems erect, 4 ft tall, light green or red tint

-sheaths are bristle-less, at base of petioles

-upper stems terminate in spike-like inflorescence

-flowers are densly crowded with small buds, pink in color

-seeds are black, shiny, round

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-annual

-found in wetlands

-stem grows up to 3ft, enlarge at joints

-leaves are lance shaped at alternate

-shealths papery at nodes

-flowers are small,pink,appear in clusters

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-perennial

-rhizomonous

-stems are reddish-brown,woody,grow to 9ft tall

-swollen nodes,surrounded by papery sheaths

-leaves are ovate,short-petioled

-flowers are greenish white to cream

-flowers are large, plume-like clusters

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-perennial

-can treat anemia (high levels of iron)

-can reproduce from taproots

-stems erect, up to 5ft tall

-lower stem red in color

-leaves are basal, curly margins,up to 12in and hairless

-flowers start green, turn reddish brown w/maturity

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-annual

-can produce up to 240,000 seeds, can stay dormant for years

-stems can grow to 12in, reddish/flesh colored

-branches grow from central point

-leaves are teardrop shaped,shiny,smooth

-can be alternating or opposite

-flowers are yellow have 5 petals

-only open when exposed to sunlight

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-biennial

-1st year produces large,thick,fuzzy rosette

-2nd year produces single stem up to 6ft

-leaves alternating, overlap eachother, densely wooly

-flowers on long terminal spikes, 5 lobed, yellow in color

-fruits are 2 chambered

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-annual

-contains alkaloids that are toxic to humans/livestock

-stem is up to 24 in,hairy,violet in color

-leaves are ovate,taper at tip, alternating

-Flowers are white to pale-blue, can resemble flowers of tomatos

-fruits are blue to black in color, pea-sized

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-Annual

-Grows to be 2 to 6 ft tall

-Upper stem is hairy, lower stem is red in color

-Leaves have prominent veins and long petioles

-Flowers form spike-like structure

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-Annual

-Produces up to 50,000 seeds

-1.5 to 3 ft tall

-Alternating leaves that are long and needle-like

-Forms tumbleweeds

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-Annual

-1-6 ft tall

-Stems are pink to purple striped

-Alternating leaves, lower leaves lobed, upper leaves are narrow

-Flowers are green and crowded in the axil

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-Annual

-Erect, slender stems that grow up to 3 ft, hairless

-Spike inforescence with short bracts and branched flowers

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-Perennial

-Leaves form in clusters at root crown

-Petal-like ray flowers, yellow in collor

-Apex has hairs

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-Perennial

-Stems 1-4 ft tall, Mature stems are woody and ridged

-Leaves are alternating

-Flowers are purple in color

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-Summer or winter annual

-Grows up to 1 ft

-Branched stems with alternating leaves

-Flowers are yellow and green with rounded or cone structure

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-Biennial

-Can grow up to 6 ft

-Flowers are terminal and purple to violet in color

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-Annual

-Causes hay fever

-Grows to 4 ft tall

-Stems are hairy and blue-green in color

-Green flowers turn brown with maturity

-Seeds viable for many years

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-Annual

-1 to 5 ft tall

-Has bristle-like hairs

-Alternating leaves, crowded at stem

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-Biennial

-1 to 3 ft tall

-Has long taproot and milky substance when stem is broken

-Hairs when young but not when mature

-Leaves can be up to 1 ft long

-Flowers are yellow