Jerusalem-artichoke, woodland sunflower
[Helianthus subcanescens (A.Gray) E.Watson, more...]
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, 4'-10' tall forb; stems stout, roughly hairy; from rhizomes with edible tubers
Leaves: lower opposite, upper 2/3 alternate, usually 1 1/2" to 4" wide, rough on top and hairy below, toothed, tapering to a long, winged stalk
Flowers: head 2" -4" wide, 10-20 yellow rays, disks yellow, bracts (phyllaries) often dark-green to blackish; inflorescence of many heads in large, branched clusters; blooms Aug.-Oct.
Habitat: moist; disturbed sites
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 2, Wetland Indicator = FAC 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 USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"