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Parasitic on Quercus spp.
Northwest IN to southern WI and southeast MN, south to LA and TX.
Perennial to a little over 1 m. Stems and leaves villous; lower leaves ovate, pinnatifid, progressively reduced up the stem; upper leaves laciniate to entire. Corollas glabrous, bright yellow; pedicels eglandular, more than 6 mm long. Fruit glabrous.
Flowers August to September
Wetland Indicator: Upland
Pictured here is the variety pulchra Pennell, with upper and bracteal leaves sharply serrate to deeply laciniate. The plants were photographed in a sandy oak savanna about half mile inland from Lake Michigan. Growing in the same area was Lilium canadensis.
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 2004