Perennials or subshrubs, 10–30 cm (stems brittle, densely leafy); usually villous, often with glandular hairs, sometimes pilose. Leaves: petioles 5–10 mm; blades 3-partite or compound-pinnatifid, 15–35 × 15–30 mm, lobes lobed, cleft, parted, or divided, ultimate margins crenate. Heads in corymbiform arrays, 7–10 × 6–11 mm. Peduncles 3–10 mm. Involucres campanulate. Phyllaries 14–20, linear to linear-lanceolate, 6–9 × 0.5–1.2(–2) mm (apices usually short-attenuate, sometimes acute). Ray florets usually 0 (sometimes 1–2 reduced rays in isolated heads, laminae color unknown, 3–5 × 1.5–2 mm). Disc florets 25–45; corollas yellow, tubes 1–1.2 mm, throats tubular to narrowly funnelform, 2–2.5 mm, lobes 0.6–0.8 mm. Cypselae narrowly oblanceolate, 3–4 mm, margins thin-calloused, short-hairy; pappi usually 0, sometimes of 1–3 moderately stout bristles 2.8–4.5 mm, often plus hyaline, laciniate scales. 2n = ca. 17.
Home