Robust hemiparasitic perennial 1-2 m, somewhat hairy; lvs opposite, the lower broadly ovate, 2-4 dm, deeply pinnatifid or bipinnatifid, the upper progressively reduced to lanceolate and entire; fls sessile or subsessile in the upper axils, forming elongate, interrupted, leafy spikes; cal 6-10 mm; cor ephemeral, yellow, 1.5 cm, the tube ampliate, longer than the spreading lobes, densely villous within; fr 6-11 mm; seeds 2-2.5 mm. Moist rich woods; O. and c. Pa. to Io. and Kans., s. to Ga. and Tex. June-Sept. (Seymeria m.; Afzelia m.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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From Flora of Indiana (1940) by Charles C. Deam
Infrequent to frequent except in the northern counties, where it is rare or absent. This is a woodland species found principally in dry soil along streams. It is a coarse perennial usually turning black on drying and soon beginning to disintegrate so that specimens more than twenty years old become very brittle. The largest plant I have seen was 7 feet high, and another large plant was 6 feet high with a lower side branch 4 feet long.
Indiana Coefficient of Conservatism: C = 5
Wetland Indicator Status: FACU
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