nodding beggar-ticks, more...
[Bidens cernua f. discoidea L., more]
Etymology: Bidens: derived from Latin bis, "twice," and dens, "tooth," hence meaning "2-toothed" and referring to the bristles on the achenes
Plants: erect, annual, 4"-40" tall forb
Leaves: mostly stalkless, undivided but with coarse teeth
Flowers: head 1 1/4"-2" wide with yellow rays to 1/2" long, center disk to 1/2"-1" wide, leafy bracts usually longer than the disk; inflorescence of many hemispherical heads (often nodding with age) in large, loose, stalked clusters; blooms Aug.-Oct.
Fruits: dry, with 2-4 barbed awns
Habitat: wet; meadows, marshes, shores
Conservation Status: Native
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 4, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions University of Wisconsin - Green Bay: Wetland Plants: Photos, descriptions, information USGS - Northern Prairie Wildlife Research Center: Wetland Plants and Plant Communities of Minnesota and Wisconsin Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada" Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key