Annual to biennial ± hispid herb up to ± 4 dm. tall; lower branches spreading to prostrate, upper us. ascending. Lvs on petioles ± 5-10 mm. long. Lamina ± 2-8 cm. diam., suborbicular, cordate; of lower lvs rather shallowly 3-5-lobed, of mid and upper lvs more deeply cut, segs narrow, coarsely toothed. Fls axillary, ± 3-5 cm. diam., on peduncles ± 2-5 mm. long. Bracteoles 7-12, linear, hispid; calyx ± 2 × 2 cm., membr., inflated, with raised hispid veins. Petals white to pale yellow, with dark brown base. Capsule subglobose, hairy, enclosed in calyx. Seeds glab., dark brown, subreniform ± 3 mm. long.

Annual or biennial herb up to 0.5 m high, not armed. Stems moderately to densely clothed in stellate hairs when young, becoming ± glabrous. Lvs sparsely hairy with simple and stellate hairs; lower lvs suborbicular and entire to coarsely serrate; stem lvs palmately 3-5-lobed, 1-6 cm long; segments serrate to pinnatifid; petioles 5-15-(30) mm long; stipules linear, 3-8 mm long, persistent. Fls solitary and axillary, or 1-3 and pseudoterminal; epicalyx segments (8)-10-13, free ± to base, linear-lanceolate; calyx campanulate; calyx teeth ovate-triangular, = or somewhat < tube, membranous, with long, few-rayed stellate hairs on veins and margins, scattered short many-rayed stellate hairs on teeth, and short simple hairs within. Petals white to pale yellow, with dark brown, red, purplish or orange markings at base, c. 20-40 mm long. Capsule separating into 5 cells at dehiscence, loosely enclosed by calyx. Seeds brown, papillate, 2-2.5 mm long.