Etymology: Aster: from the Greek aster, "a star," describing the radiate heads of the flowers
Plants: erect, perennial, 1'-4' tall forb from colony-forming rhizomes
Leaves: many, clustered, mostly toothed; large, broadly-oval basal leaves long-stalked with heart-shaped bases; upper leaves smaller and becoming stalkless
Flowers: head 1"-1 1/2" wide with 9-20 bluish to purple rays; inflorescence flat to round-topped, branched clusters; blooms July-Oct.
Habitat: shade; woods, forests
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 4 Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times University of Wisconsin - Green Bay: Vascular Plants: Photos, descriptions, information USDA Plants Database: Federal Distribution and detailed information including photos Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"