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Sand prairies, dry hill prairies.
Herbaceous perennial. Basal leaves conspicuous at flowering time; stems leaves fewer than 6 pairs, the cauline ones strongly reduced upwards. Floral heads with both ray and disk flowers; rays yellow; disk corollas yellow or brownish-yellow; phyllaries acuminate.
Flowers mid July to early October
Wetland indicator: Facultative upland-
The common sunflower in open sand near Lake Michigan.
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
Michael Hough © 2005