Perityle ciliata

Subshrubs, 15-30 cm (in rock crevices, stems relatively many, erect to pendulous); sparsely to densely short-hairy, glandular. Leaves: petioles 2-15 mm; blades deltate-ovate to ovate-rhombic, 6-23 × 5-24 mm, margins usually entire or serrate to serrate-crenate, sometimes shallow-lobed. Heads in corymbiform arrays, 5-7 × 5.5-7 mm. Peduncles 5-25 mm. Involucres campanulate. Phyllaries 13-20, linear-lanceolate to narrow-ovate, 4-5.5 × 1-2 mm. Ray florets 6-10; corollas white, sometimes pink tinged, laminae broadly oblong to oblong-elliptic, 3-7 × 1.5-3 mm. Disc florets 30-40; corollas yellow, often purple tinged, tubes 0.8-1 mm, throats tubular to tubular-funnelform, 1.2-1.4 mm, lobes 0.3-0.4 mm. Cypselae linear-oblong to oblanceolate, 2-2.8 mm, margins prominently calloused, long-ciliate; pappi of 2(-3+) barbellulate bristles 1.5-2.5 mm plus crowns of hyaline, laciniate scales. 2n = 34.

Flowering spring-fall. In rock crevices; 1100-2500 m; Ariz.

Perityle ciliata is found only in the mountains of central Arizona in Apache, Coconino, Gila, Mohave, and Yavapai counties. It appears to be most closely related to P. coronopifolia.