Rudbeckia grandiflora var. alismifolia

Stems glabrous or sparsely hairy proximally and hairy distally (hairs ascending, mostly shorter than 0.5 mm). Leaves scabrous to puberulent. 2n = 38.

Flowering late spring-summer. Prairies, open sites; 30-200 m; Ark., Ky., La., Miss., Tex.