Rudbeckia laciniata var. humilis

Leaves: basal 12-45 × 10-25 cm, blades 0, 3, or 5-lobed; proximal and mid cauline blades similar (distal usually 3-lobed or not lobed); adaxial faces sparsely to moderately hairy. Receptacles hemispheric to globose; paleae 4-5.5 mm. Ray laminae 20-45 × 5-11 mm. Discs 10-20 × 10-17 mm. Cypselae 3.5-5.2 mm; pappi to 0.7 mm. 2n = 38.

Flowering late summer-fall. Wet sites along streams and edges of woods; 70-1500 m; Ala., Ga., Md., N.C., S.C., Tenn., Va.