Erigeron sonnei Greene, Pittonia 1: 218. 1888; E. nevadensis A. Gray var. sonnei (Greene) Smiley

Stems 4–12(–21) cm. Heads 1(–2), held just beyond to well beyond basal leaves. Involucres 4.5–8 × 8–12(–16) mm. Phyllaries hirsutulous to villous (hairs 0.5–1.5 mm), eglandular. Ray laminae 4.5–6.6(–8.5) mm. Disc corollas 3.5–5 mm. Cypselae 2.8–3.5 mm; pappi of 18–30 bristles 3.5–5 mm. 2n = 18.

Flowering May–Sep. Meadows, seeps, rocky flats, often with sagebrush; 1800–2800 m; Calif., Nev.