Term
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Definition
[image]
mat-forming; smooth stems; leaves notched at apex; small green flowers clustered in leaf axils |
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Term
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Definition
[image] erect, hairy stem;
green flowers clustered in terminal and axillary spikes |
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Term
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Definition
[image]
glabrous stem; leaves more narrow and flowers less compressed than other pigweeds; dioecious. |
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Term
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Definition
[image]
tumble shape; green flowers clustered in leaf axils, white stem |
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Term
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Definition
[image]
usually climbing, woody vine; 3 leaflets, the middle leaflet is on a longer petiolule; leaflet margins may be entire, toothed, or lobed; flowers are yellowish-green; berries are greenish or grayish white
Perennial, Stolons/roots |
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Term
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Definition
[image]
finely divided, twice-pinnately compound leaves; white flowers in compound umbels; stiff hairs on stem that is hollow between nodes; stout taproot
Biennial |
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Term
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Definition
[image]
oppposite leaves; milky sap; greenish-white flowers; slender fruit
Perennial, roots |
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Term
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Definition
[image]
opposite leaves; milky sap; leaves larger and oblong; pink flowers in ball-like clusters; fruit is a large pod with soft spines
Perennial, roots |
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Term
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Definition
[image]
basal rosette in first year; leaves dark green with stiff spines on lobes; leaves hairy on top and wooly underneath; heads contain purple disk flowers above spine-tipped bracts
Biennial |
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Term
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Definition
[image]
leaves waxy-lobed with spines; stems adn upper leaf surfaces smooth; heads contain pink-purple disk flowers above spineless bracts; dioecious
Perennial, roots |
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Term
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Definition
[image]
dandelion-like basal rosette; wiry stems with few leaves; milky sap; blue-purple ray flowers
Perennial |
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Term
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Definition
[image]
first year basal rosette of very large leaves; leaves are light green and wooly underneath; purple disk flowers above hooked bracts; fruit is a bur
Biennial |
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Term
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Definition
[image]
large, rough leaves with short hairs; leaves are triangular, toothed, and lobed, and light green underneath; monoecious; fruit a bur containing two seeds, stem spots |
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Term
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Definition
[image]
thick, deeply lobed leaves; stems usually heavily branched; heads often subtended by black tipped bracts and contain yellow disk flowers,
WA, SA |
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Term
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Definition
[image]
pinnately compound divided leaves; first leaves opposite; later leaves alternate; green, unisexual flowers clustered on terminal branches(male) or in leaf axils (female) |
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Term
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Definition
[image]
finely divided leaves with pungent odor; white flower heads in clusters
Perennial, Rhizomes |
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Term
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Definition
[image]
basal rosette; milky sap; ray flowers in bright yellow heads
Perennial |
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Term
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Definition
[image]
large, opposite, palmately lobed leaves; usually 3-5 lobes per leaf; rough stem; can grow several meters high; flowers as described for common ragweed |
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Term
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Definition
[image]
basal rosette produces main stem surrounded by numerous,alternate, sessile leaves; leaves are smooth above; stem is smooth or has soft hairs; yellow ray and disk flowers in panicle-like clusters
Perennial, rhizomes |
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Term
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Definition
[image]
basal rosette produces main stem surrounded by numerous, alternate, sessile leaves; leaves and stem are hairy; small heads with white ray and yellow disk flowers produced in panicles
WA, SA |
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Term
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Definition
[image]
basal rosette of waxy leaves with few or no hairs; leaf margins spiny; heads contain pink-purple disk flowers above spine-tipped bracts
Biennial |
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Term
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Definition
[image]
basal rosette produces main stem; leaves are dull, light green with a row of spines on the underside; heads containing yellow ray flowers pruduced in dense panicle
WA, SA |
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Term
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Definition
[image]
basal rosette; margins of rosette leaves mostly smooth; numerous small flowers with white petals; fruit a flat silicle (thicker than a pencil)
WA, SA |
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Term
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Definition
[image]
basal rosette; older leaves of rosette deeply lobed; white petals; heart shaped silicle
WA, SA |
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Term
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Definition
[image]
basal rosette with deeply lobed leaves; white petals, small silicle (thinner than a pencil)
WA, SA |
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Term
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Definition
[image]
basal rosette; leaves have wavy, toothed margins; yellow petals, fruit a silique (long fruit)
WA, SA |
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Term
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Definition
[image]
broad leaves; line of hairs on stems; white petals, hairs line up in a row
WA |
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Term
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Definition
[image]
mealy coating on young leaves; angular stems; small, green flowers, striped stem |
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Term
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Definition
[image]
narrow leaves covered with soft hairs; bushy; small, green flowers, tumble weed, purple pigmentation striping |
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Term
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Definition
[image]
bell-shaped leaves with angular basal lobes; viny; white petals (sometimes pink) fused into funnel, fish-shaped leaves, single point on each side
Perennial, reproduce with roots |
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Term
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Definition
[image]
arrowhead-shaped leaves covered with appressed hairs; viny; large, funnel-shaped flowers are purple or white; short sepals
Perennial, reproduce with rhizomes |
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Term
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Definition
[image]
heart-shaped leaves covered with appressed hairs; viny; large, funnel-shaped flowers are purple or white; short sepals |
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Term
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Definition
[image]
Grass-like but with triangular, solid stems and 3-ranked leaves; inconspicuous flowers in terminal spikelets
Perennial, reproduces with tubers and rhizomes |
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Term
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Definition
[image]
mat-forming, opposite leaves, milky sap; inconspicuous flowers in leaf axils produce 3-lobed fruit |
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Term
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Definition
[image]
trifoliate leaves; center leaflet on a long petiolule; prostrate or decumbent; numerous yellow flowers in small clusters; fruit is a black pod |
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Term
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Definition
[image]
trifoliate leaves on long petioles; creeping stems; white flowers in round heads
Perennial, reproduce by stolons |
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Term
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Definition
[image]
opposite, rounded leaves; square stems; purple, bilabiate flowers
Winter annual |
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Term
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Definition
[image]
round leaves with toothed margins and palmate venation; decumbent; flowers have 5, white petals and produce a button-shaped fruit.
WA, SA, Biennial |
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Term
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Definition
[image]
leaves oval to oblong to lanceolate; flowers have 5, yellow petals; small spines at leaf nodes (bumps) |
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Term
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Definition
[image]
heart-shaped leaves covered with soft hairs; flowers have 5, yellow petals and produce a button shaped fruit with spine-like protrusions |
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Term
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Definition
[image]
legume look-alike; trifoliate leaves with heart-shaped leaflets; flowers have 5, yellow petals
Perennial |
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Term
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Definition
[image]
basal rosette of large, waxy leaves with prominent veins; inconspicuous flowers densely clustered on leafless stalks
Perennial |
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Term
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Definition
[image]
basal rosette of narrow leaves with parallel venation; inconspicuous flowers densely clustered on leafless stalks |
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Term
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Definition
[image]
mat-forming with succulent stems and leaves; small flowers with 5, yellow petals |
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Term
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Definition
[image]
prickly shrub with compound leaves subtended by feathery stipules; white flowers produce red, pellet shaped fruit
Perennial, reproduce by stolons |
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Term
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Definition
[image]
basal rosette produces a long flower stalk; leaves are light green and wooly
Biennial |
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Term
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Definition
[image]
triangular leaves usually purple underneath; star-shaped flowers with white petals and large, yellow stamens produce black berries |
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Term
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Definition
[image]
stems and leaves spiny; flowers similar to those of eastern black nightshade; fruit a yellow berry |
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Term
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Definition
[image]
leaves usually toothed and dark green; unpleasant odor; stems are thick and usually purple; large, funnel-shaped flower; fruit a large, spiny capsule |
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Term
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Definition
glabrous, leaves folded in the bud; membranous ligule; seedhead is open and white
WA |
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Term
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Definition
| glabrous, no ligule; compact, green-purple panicle |
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Term
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Definition
leaves spiraled and covered with soft hairs; membranous ligule; drooping panicle often tinged purple
WA |
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Term
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Definition
| Young leaves hairy on underside, older leaves glabrous; hairy ligule; conspicous midvein; seedhead is large, open panicle; seeds are shiny and slender |
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Term
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Definition
| Hairy ligule; leaves have short, fine hairs on upper surface; drooping dense panicle |
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Term
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Definition
| Hairy ligule; glabrous leaves; hairs along margin of leaf sheath |
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Term
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Definition
| Hairy ligule; long hairs at leaf bases but leaves otherwise glabrous; seeds larger than other foxtails |
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Term
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Definition
Glabrous leaves with prominent midvein; large, membranous ligule; seedhead is an open panicle usually tinged purple
Perennial, Rhizomes |
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Term
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Definition
| leaves and sheaths covered with stiff hairs; membranous ligule; seedhead consists of several spikes; may root at stem nodes |
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Term
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Definition
short, membranous ligule; AURICLES, seedhead is a long spike
Perennial, Rhizomes |
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Term
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Definition
| corn-like stems; ligule is membranous at the base and fringed on top; on older plants leaves usually >3cm and stem is purple spotted; dense panicle |
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Term
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Definition
| Hairy ligule; leaves and sheath covered with fine hairs; one leaf margin usually crinkled; first leaf is flat with soil; inflorescence a terminal stalk with spike-like branches |
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