www.sare.org publications manage-weeds-on-your-farm common-cocklebur Cocklebur, common Other common names: clotbur, cocklebur, broad-leaved cocklebur, sheep bur, ditch bur, button bur, noogoora bur, heartleaf cocklebur, rough cocklebur Xanthium strumarium L. Identification of Cocklebur Family: Aster family, Asteraceae Habit: Erect summer annual herb Description: Seedlings have short, thick stems with purple at the base. Seed leaves are lanceolate, unusually large (2 inches by 0.5 […]
www.sare.org publications manage-weeds-on-your-farm common-chickweed Chickweed, common Other common names: starwort, starweed, bindweed, winter weed, satin flower, tongue grass, chickwhirtles, cluckenweed, mischievous Jack, skirt buttons, cyrillo, white bird’s eye, common starwort Stellaria media (L.) Vill. Identification of Chickweed Family: Pink family, Caryophyllaceae Habit: Mat forming winter or summer annual herb Description: Seedling cotyledons are oval, 0.4 inch long by 0.1 inch wide, […]
www.sare.org publications manage-weeds-on-your-farm chamomiles Chamomiles Other common names: Corn chamomile, Anthemis arvensis L. Mayweed chamomile, Anthemis cotula L. Identification of Chamomiles Family: Aster, Asteraceae Habit: Upright, branching winter or summer annuals with finely divided leaves Description: Seedlings have thick, hairless, stalkless, oval shaped cotyledons. The first two leaves are opposite, somewhat thick and divided. Subsequent leaves are thinner, green, lightly […]
www.sare.org publications manage-weeds-on-your-farm catchweed-bedstraw-and-false-cleavers Catchweed Bedstraw and False Cleavers Other common names: Galium aparine L. and Galium spurium L. Identification of Catchweed Bedstraw and False Cleavers Family: Madder family, Rubiaceae Habit: Lax summer or winter annual herbs, typically scrambling over other plants Description: The two species are very similar in appearance. The seedling stem is green with purple or brown splotches. The first true leaves […]
www.sare.org publications manage-weeds-on-your-farm canada-thistle Canada Thistle Other common names: creeping thistle, small-flowered thistle, perennial thistle, green thistle, field thistle, cursed thistle, corn thistle Cirsium arvense (L.) Scop. Identification of Canada Thistle Family: Aster family, Asteraceae Habit: Prickly perennial herb spreading by deep thickened storage roots Description: Cotyledons of the seedling are stalkless, fleshy, hairless, oval to rounded and 0.2–0.6 inch long […]
www.sare.org publications manage-weeds-on-your-farm bindweeds Bindweeds Other common names: Field bindweed, Convolvulus arvensis L. Hedge bindweed, Calystegia sepium (L.) R. Br. Identification of Bindweeds Family: Morningglory family, Convolvulaceae Habit: Twining perennial herb spreading by thickened horizontal roots Description: Vegetative sprouts arise from storage roots, lack cotyledons and have normal leaves, although the first leaves that form as the shoot is just […]
www.sare.org publications manage-weeds-on-your-farm bermudagrass Bermudagrass Other common names: scutch grass, dogs-tooth grass, wire grass, couchgrass Cynodon dactylon (L.) Pers. Identification of Bermudagrass Family: Grass family, Poaceae Habit: Long-lived, prostrate, fine-leaved perennial grass that spreads by runners and rhizomes Description: Seedling leaf sheaths and collars are smooth. Leaves are rolled in the bud and are smooth on both surfaces. The ligule […]
www.sare.org publications manage-weeds-on-your-farm barnyardgrass Barnyardgrass Other common names: water grass, panic grass, cockspur grass, cocksfoot panicum, barn grass, summergrass, billion dollar grass, Japanese millet Echinochloa crus-galli (L.) P. Beauv. Identification of Barnyardgrass Family: Grass family, Poacea Habit: tall, upright, summer annual grass Genus variability: The genus Echinochloa is composed of many distinct species and ecotypes that are difficult to classify. […]
www.sare.org publications manage-weeds-on-your-farm annual-sowthistles Annual Sowthistles Other common names: Annual sowthistle, Sonchus oleraceus L. Spiny sowthistle, Sonchus asper (L.) Hill Identification of Annual Sowthistles Family: Aster family, Asteraceae Habit: Erect summer or winter annual herbs Description: Seedlings form alternate-leaved rosettes before bolting. Cotyledons are hairless, have short stalks and are circular to egg shaped. The first true leaves are sparsely hairy, […]
www.sare.org publications manage-weeds-on-your-farm annual-bluegrass Annual Bluegrass Other common names: low speargrass, six-weeks grass, annual meadowgrass, annual spear grass, dwarf spear grass, dwarf meadow grass, causeway grass, speargrass, poanna Poa annua L. Identification of Annual Bluegrass Family: Grass family, Poaceae Habit: Short winter or summer annual bunchgrass, sometimes surviving through a second growing season. Two major variants have been identified, P. annua […]