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Dry woods and open, rocky areas.
Nova Scotia and Quebec to WI, south to GA and LA.
Herbaceous perennial to 1 m from a branching caudex; typically hirsute throughout. Leaves basally disposed, broadly oblanceolate to obovate or elliptic, toothed or entire, to 6 cm wide and 20 cm long. Inflorescence narrow and elongate with leafy bracts below; rays 7-14, white or whitish; involucres 3-5 mm, the bracts obtuse or rounded, whitish or light stramineous and generally with a light green tip. Achenes smooth.
Flowers late July to October
Wetland indicator: Upland
A similar species with yellow flowers, S. hispida Muhl., has been noted for the Chicago region and can form hybrids with S. bicolor.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of
Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
Michael Hough © 2010