Etymology: Helianthus: derived from two Greek words helios, "sun," and anthos, "flower," in reference to the sunflower's supposed tendency to always turn toward the sun
Plants: erect, perennial, 2'-5' tall forb; stems with a few, small leaves
Leaves: largest leaves basal on very long stalks, only 3-8 small opposite pairs on the stems
Flowers: head 1 1/2" - 2 3/4" wide with 10-15 yellow rays, disk yellow; inflorescence of several heads in loosely-branched clusters; blooms July-Sept.
Habitat: full sun; dry to moderate moisture; prairies; in rocky, sandy, loamy soil
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 6, Wetland Indicator = FACU- 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