Annuals. Stems pilosulous to villous and/or stipitate-glandular. Leaves: petioles 2-10 cm, not winged; blades 4-12(-18+) × 2-8(-12+) cm, shallowly, if at all, pinnately lobed. Cypselae 4.5-6 mm, 5-angled or -ribbed.

Flowering Sep-Oct. Cherty outcrops; 300-500 m; Ark.