三指扁毛菊 san zhi bian mao ju

Waldheimia tridactylites Karelin & Kirilov, Bull. Soc. Imp. Naturalistes Moscou 15: 126. 1842.

Herbs, perennial, to 6 cm, with woody, procumbent, much-branched rhizome; stems many; entire plant glabrous. Leaves in dense rosettes, sessile; leaf blade cuneate, 1-2 × 0.5-1 cm, glabrous, base cuneate-attenuate, apex 3(-5)-lobed or -parted. Capitulum solitary, terminal, 2.5-3.5 cm in diam., sessile. Involucre hemispheric, 1.5-2 cm in diam.; phyllaries in 3 or 4 rows, abaxially glabrous, scarious margin broad, dark brown, outer phyllaries ovate-oblong to oblong, ca. 7 mm, apex cuspidate, inner ones oblong, ca. 8 mm. Ray florets 8-15; lamina pinkish white, pink, or purple-red, elliptic-oblong, 7-11 × 2.5-4 mm, apex 2- or 3-denticulate. Disk florets: corolla yellow, 4-5.5 mm, apex 5-lobed. Achenes 2.5-4 × 0.6-0.8 mm, somewhat curved, 5-ribbed, glabrous, with sessile glands. Corona scales many, bristlelike, usually tinged reddish or brownish, 6.5-8 mm. Fl. Jul-Sep.

Floodlands, talus on mountain slopes; 3000-4000 m. Xinjiang, Xizang [Kazakhstan, Mongolia, Russia].