沙生岩菀 sha sheng yan wan

Aster eremophilus Bunge, Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans 2: 599. 1835; A. uniflorus (Bunge ex Candolle) B. Fedtschenko (1915), not Moench (1794), nor Michaux (1803), nor (Hooker) Kuntze (1891), nor (Linnaeus) E. H. L. Krause (1905); Borkonstia eremophila (Bunge) Ignatov; Krylovia eremophila (Bunge) Schischkin; Rhinactina uniflora Bunge ex Candolle.

Herbs, perennial, scapiform. Stems several, simple, 3-8(-10) cm, ± densely strigose. Leaves: basal many, rosulate, petiole equal to blade or shorter, base expanded, clasping, blade oblong-obovate to oblanceolate, 1.5-4 × 0.3-0.8 cm, surfaces densely strigose, usually 1-veined, rarely inconspicuously 3-veined, base attenuate, margin entire or sparsely serrulate, apex acute or ± obtuse, rarely rounded; cauline few, sessile, reduced, narrowly oblong or linear, base cuneate, apex obtuse. Capitula solitary at ends of stems, 1.5-2 cm in diam. Involucre subhemispheric, 5-6 × ca. 10 mm; phyllaries 3-seriate, leathery, margin narrowly scarious, erose, sometimes ciliate, apex acuminate, outer shorter, lanceolate, ± densely strigose, mid and inner oblong, strigose or almost glabrous in lower half. Ray florets lamina light violet, 13-15 × ca. 2 mm; disk florets yellow, 4.5-5.5 mm, lobes lanceolate. Achenes ca. 4 mm, densely strigose. Fl. Jun-Jul.

Steppes and dry pebbly slopes; 1800-2700 m. C and N Xinjiang [Kazakhstan, Mongolia, Russia (Altai, W Siberia)].