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.)
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