Annual broadleaf weed identification
On this page
- Buckwheat, wild
- Cocklebur, common
- Mustard, wild
- Nightshade, black
Descriptions of annual broadleaf weed seedlings
Leaves heart-shaped, entire (smooth) margins, alternate, bearing ochrea at base of petiole; flowers small, greenish; seed triangular; plants viny and wining.
Leaves deeply lobed, alternate, petioles and stem prickly with yellow spines; flowers yellow; fruit a berry-like capsule beset with long yellow spines; plant erect or trailing.
Leaves alternate, coarsely toothed or lobed, rough; flowers greenish; fruit a spiny bur containing two seeds; plant erect.
Leaves small, linear, densely hairy; flowers small, greenish; fruit small, one-seeded; stem often turning reddish in fall; plant erect, bushy.
Leaves alternate, white mealy, toothed; flowers gray-green in small round clusters; fruits small, one-seeded; plant erect, much branched.
Leaves opposite, long petiole, coarsely toothed or lobed; flowers small, greenish-yellow, in clusters; fruits one-seeded; plants erect.
Leaves alternate, rough hairy, toothed or lobed; flowers yellow, with 4 petals; fruit a many-seeded cylindrical capsule; plants erect or trailing.
Leaves alternate, coarsely toothed; flowers white to lavender with yellow centers; fruit a greenish berry turning black at maturity; plants erect or trailing.
Leaves alternate, long petiole, leaf margins slightly toothed; flowers small, greenish, subtended by bristles; seeds black, shiny; plant erect; tap root often reddish.
Leaves deeply lobed, fern-like, alternate, leaves and stems densely white, hairy; flowers small yellowish-green, separate male and female flowers on same plant; seeds small, crown-shaped.
Leaves deeply three-to-five lobed, opposite except at top of plant; flowers small, greenish-yellow, separate male and female flowers on same plant; seed 1/4 inch or more across, crown-shaped.
Leaves alternate, smooth, entire (smooth) margins, ochrea at base of leaf petiole; stem nodes swollen; flowers in pink raceme-like clusters; seed shiny, lens-shaped; plants erect or trailing.
Leaves alternate, long petiole, coarsely toothed, rough hairy; flowers yellow in large heads with dark center; seeds large, oblong, many per head; plants erect, tall.
Leaves narrow, thread-like, spine tipped, alternate; flowers small, grayish-green; seed coiled; stem often streaked with red.
Leaves alternate, large, heart-shaped, velvety soft hairy, stem pubescent, plant has strong odor; flowers yellow; fruit a button-like capsule with numerous heart-shaped seeds; plant erect, much branched.
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Issued in furtherance of Cooperative Extension work, Acts of Congress of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture and Cooperative Extension Services of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin, Charles H. Casey, Interim Dean and Director, University of Minnesota Extension Service, St. Paul, Minnesota 55108.
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WW-01350-GO Reviewed 1997