Gila Rockdaisy

Perennials or subshrubs, 22–70 cm (often in dense clumps, stems upright to pendent or spreading); glabrous or puberulent, often glandular. Leaves: petioles 9–45(–80) mm; blades usually pinnately 3-foliolate (proximal) or 3-lobed, 14–30 × 4–20 mm, lobes much broadened distally, often cruciform, sometimes 3-lobed to divided, ultimate margins entire or lobed. Heads borne singly or (2–4) in corymbiform arrays, 8–11 × 9–12 mm. Peduncles 1–4 mm. Involucres broadly campanulate to hemispheric. Phyllaries 20–30, linear-lanceolate to oblanceolate, 4–7 × 0.8–1.5 mm. Ray florets 8–18; corollas yellow, laminae oblong to subovate, 4–10 × 2–4 mm. Disc florets 70–200; corollas yellow, tubes 1.5–2 mm, throats subtubular to narrowly funnelform, 2.5–3.5 mm, lobes 0.7–0.8 mm. Cypselae narrowly oblanceolate to narrow oblong-elliptic, 2.6–4 mm, margins notably calloused, sparsely short-hairy, sometimes glandular; pappi of 1(–3) bristles 3–4.6 mm, sometimes plus hyaline scales.

Laphamia gilensis M. E. Jones, Zoë 2: 15. 1891