Hymenopappus radiatus Rose

Perennials, 30–45 cm. Leaves: basal 2-pinnate, 8–14 cm, lobes 5–15+ × 1–2 mm; cauline 2–3. Heads 6–8 per stem. Peduncles 3–8 cm. Phyllaries yellowish, 7–9 × 3–5 mm. Ray florets 8; corollas white, laminae 14–16 mm. Disc florets 30–50+; corollas yellowish, 3–4 mm, tubes 1.5–2 mm, throats campanulate, 1.5 mm, lengths 3 times lobes. Cypselae 4–4.5 mm, ± hirtellous to villous; pappi of 14–18 scales 0.4–0.6 mm. 2n = 34.