Hymenopappus luteus Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 374. 1841

Stems 5–20+ cm. Leaves: basal axils ± densely tomentose, terminal lobes 2–6 mm; cauline 0–3(–4). Heads (5–)10–50. Peduncles 1–7 cm. Phyllaries 5–7 mm. Florets 15–25; corollas yellowish, 2–3(–3.5) mm, throats 1–2 mm, lengths (2–)3–4 times lobes; anthers 2 mm. Cypselae 4–5 mm, hairs 1–2 mm; pappi 0.1–0.8 mm. 2n = 34.

Flowering Jun–Jul. Sands, gravels, calcareous; 1600–2200 m; Colo., Utah, Wyo.