www.sare.org publications manage-weeds-on-your-farm horseweed Horseweed Other common names: blood stanch, butterweed, Canada fleabane, colt’s tail, fireweed, hogweed, mare’s tail, pride weed, flea wort, mule tail, fleabane, bitterweed, Canadian fleabane, stickweed Conyza canadensis (L.) Cronquist = Erigeron canadensis L. Identification of Horseweed Family: Aster family, Asteraceae Habit: Erect, winter or summer annual herb with densely leafy, essentially unbranched stalks Description: Short […]
www.sare.org publications manage-weeds-on-your-farm horsenettle Horsenettle Other common names: ball nettle, bull nettle, apple-of-Sodom, wild tomato, sand brier, devil’s tomato, devil’s potato, Carolina horse nettle Solanum carolinense L. Identification of Horsenettle Family: Nightshade family, Solanaceae Habit: Thorny, branched perennial herb spreading by deep horizontal roots Description: Seedlings have oval to oblong-shaped, 0.5 inch-long cotyledons. The cotyledons have a shiny green surface, […]
www.sare.org publications manage-weeds-on-your-farm hemp-sesbania Hemp Sesbania Other common names: coffeeweed Sesbania herbacea (Mill.) McVaugh = S. exaltata (Raf.) Rydb. ex A.W. Hill = S. macrocarpa Muhl. ex Raf. Identification of Hemp Sesbania Family: Legume family, Fabaceae Habit: A tall, erect species, hemp sesbania behaves as an annual herb in most of the United States because it is killed by frost, but […]
www.sare.org publications manage-weeds-on-your-farm goosegrass Goosegrass Other common names: wiregrass, yard grass, crowfoot grass, crows foot grass, silver crabgrass, bullgrass, white crabgrass, Indian goosegrass Eleusine indica (L.) Gaertn. Identification of Goosegrass Family: Grass family, Poaceae Habit: semi-prostrate summer annual grass Description: The seedling is folded in the bud and its first leaf opens parallel to the ground. The collar region is […]
www.sare.org publications manage-weeds-on-your-farm giant-ragweed Giant Ragweed Other common names: great ragweed, buffalo weed, kinghead, crown weed, wild hemp, horse weed, bitterweed, tall ambrosia, tall ragweed Ambrosia trifida L. Identification of Giant Ragweed Family: Aster family, Asteraceae Habit: Tall, branched, summer annual herb Description: Seedling cotyledons are round to paddle shaped, 0.75–1.75 inch long by 0.25–0.5 inch wide. The stem is shiny […]
www.sare.org publications manage-weeds-on-your-farm galinsogas Galinsogas Other common names: Hairy galinsoga, Galinsoga quadriradiata Cav. = G. ciliata (Raf.) S.F. Blake Smallflower galinsoga, Galinsoga parviflora Cav. Identification of Galinsogas Family: Aster family, Asteraceae Habit: Highly branched, summer annual herbs Description: Seedlings have 0.4 inch-long, stalked cotyledons and opposite young leaves. Mature plants are upright and much-branched. Branching occurs in even pairs from […]
www.sare.org publications manage-weeds-on-your-farm flixweed Flixweed Other common names: herb sophia, tansy mustard Descurainia sophia (L.) Webb ex Prantl Identification of Flixweed Family: Mustard family, Brassicaceae Habit: Slender, erect, branching winter annual or biennial herb Description: Seedlings have light green cotyledons that are 0.2–0.3 inch long by 0.04–0.06 inch wide, oval to club shaped, and rough due to surface hairs. The […]
www.sare.org publications manage-weeds-on-your-farm field-pennycress Field Pennycress Other common names: bastardcress, fanweed, stinkweed, mithridate mustard, frenchweed, French weed, bastardweed, dish mustard, field thlaspi Thlaspi arvense L. Identification of Field Pennycress Family: Mustard family, Brassicaceae Habit: Erect, branched, summer or winter annual herb Description: Cotyledons are hairless, unequally sized, 0.2–0.4 inch long by 0.1–0.3 inch wide, oval shaped and bluish-green in color. The […]
www.sare.org publications manage-weeds-on-your-farm foxtails Foxtails Other common names: Identification of Foxtails Giant foxtail, Setaria faberi Herrm. Green foxtail, Setaria viridis (L.) P. Beauv. Yellow foxtail, Setaria pumila (Poir.) Roem. & Schult. = S. glauca (L.) P. Beauv. = S. lutescens (Weigel) F.T. Hubbard Family: Grass family, Poaceae Habit: Erect or sprawling summer annual grasses Description: Seedlings are rolled in the […]
www.sare.org publications manage-weeds-on-your-farm fall-panicum Fall Panicum Other common names: spreading witch grass, sprouting crab grass, smooth witchgrass, western witchgrass Panicum dichotomiflorum Michx. Identification of Fall Panicum Family: Grass family, Poaceae Habit: Large, erect, summer annual grass Description: Seedlings often have a purple hue. Seed leaves and first true leaves are parallel to the ground, lanceolate to linear in shape and densely […]