1. Uropappus lindleyi (de Candolle) Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 425. 1841.
Lindley’s silver puff
Calaïs lindleyi de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 7: 85. 1838; Microseris lindleyi (de Candolle) A. Gray; M. linearifolia (Nuttall) Schultz Bipontinus; Uropappus linearifolius Nuttall
Leaves 5–30 cm. Peduncles 5–40 cm. Involucres 10–40 mm after flowering. Phyllaries reflexed in fruit, oftenreddish, outer 2–8, inner 3–18. Ligules 2-–10 mm, equaling or barely surpassing phyllaries at flowering . Cypselae 7–17 mm; pappi: scales 5–15 mm, apices notched 1–2 mm, bristles delicate, 4–6 mm. 2n = 18.
Flowering Mar–May. Grasslands, shrub steppe, open oak woodlands. chaparral, s coastal scrub, deserts, usually well drained soils on slopes, road banks, serpentine gravels, sandy desert flats; 10–1800 m; B.C.; Ariz., Calif., Idaho, Nev., N.Mex., Oreg., Tex., Utah, Wash.; Mexico (Baja California, Sonora).
Uropappus lindleyi grows in the Columbia-Snake Rivers Plateau Province, Basin and Range Province, Interior Mountains and Plateaus System, and the Pacific Border System.