Etymology: Coreopsis: from Greek koris, "a bug," and -opsis, indicating a resemblance, therefore meaning bug-like, referring to the achenes which look like ticks
Plants: erect, perennial, 2'-3' tall forb; from rhizomes
Leaves: stalkless, divided into 3 deep lobes above the base, lobes linear with the center one sometimes lobed again
Flowers: head 1 1/2"- 2 1/2" wide, yellow rays 1/2"-1" long and mostly with un-notched tips, disk 1/3"-1/2" wide; inflorescence with one to a few heads on short stalks; blooms June-Aug.
Fruits: dry seed with narrow wings and no fluffy pappus
Habitat: full sun; dry to moderate moisture; prairies, meadows; in sandy, loamy soil
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 8 Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key