Hymenopappus radiatus

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.

Flowering May-Jul. Sandy soils, pine woodlands; 2100-2700+ m; Ariz.