Hymenopappus polycephalus Osterhout, Torreya 18: 90. 1918

Stems (20–)30–60 cm. Leaves: basal axils ± densely tomentose, terminal lobes (4–)10–30 mm; cauline (2–)3–8. Heads 5–60. Peduncles 2–8 cm. Phyllaries 5–8 mm. Florets 20–50; corollas yellowish, 3–3.5 mm, throats 1.3–1.8 mm, lengths 2–3 times lobes; anthers 2.5–3 mm. Cypselae 4–5 mm, hairs 1–2 mm; pappi 0.6–2 mm. 2n = 68.

Flowering Jun–Aug. Hills, prairies, sands, clays; 600–2100+ m; Alta., Sask.; Colo., Kans., Mont., Nebr., N.Dak., S.Dak., Wyo.