Common Lambsquarters
Chenopodium album L. Also known as fat hen, lambsquarters goosefoot, white goosefoot Biology Common lambsquarters is an upright,...
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Palmer amaranth
Amaranthus palmeri S.Wats. Also known as Palmer pigweed or careless weed Biology Palmer amaranth is a summer annual broadleaf...
Giant Ragweed
Ambrosia trifida L. Also known as great ragweed Biology Due to giant ragweed’s early emergence, rapid growth and biomass...
Italian Ryegrass
Lolium perenne L. ssp. multiflorum (Lam.) Husnot. Also known as: annual ryegrass, annual rye The nomenclature surrounding...
Barnyardgrass
Echinochloa crus-galli (L.) P. Beauv. Also known as cockspur grass, barnyard millet, watergrass, chicken panic grass,...
Johnsongrass
Sorghum halepense (L.) Pers. Also known as aleppo grass, aleppo millet grass Biology Johnsongrass is a fast-growing perennial...
Redroot Pigweed
Redroot pigweed is a summer annual that is native and present in all states of the continental US. Herbicide resistant...
Smooth Pigweed
Images: (top) Smooth pigweed seedlings, VA Tech. (bottom) Mature smooth pigweed with seed heads, Missouri State University....
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