青藏狗娃花 qing zang gou wa hua

Aster boweri f. annuus Onno; Heteropappus boweri (Hemsley) Grierson.

Herbs, biennial or perennial, 2.5-7 cm tall, from caudex, thickly taprooted, sometimes clad with marcescent leaf bases. Stems solitary or 3-6, simple or branched near base, decumbent or ascending, slender, moderately to densely white hispid, more densely so upward, ± densely stipitate glandular below capitula. Leaves ± densely strigose or adaxially glabrate, margin entire, strigose-ciliate, basally crowded, shortly winged petiolate or subsessile, narrowly oblanceolate to spatulate, 1-3 × 0.2-0.4 cm, base clasping, apex acute to obtuse; upper cauline leaves lanceolate to linear, 0.5-0.8 × ca. 0.2 cm. Capitula terminal, solitary, 25-30 mm in diam. Involucres hemispheric, 1-1.5(-2) cm in diam.; phyllaries 2- or 3-seriate, subequal, linear to linear-lanceolate, abaxially ± densely strigose to villous-strigose, herbaceous, margin strigose, of inner phyllaries scarious, erose. Ray florets ca. 40, purple, tube 2-3 mm, lamina 9-13 × 1.5-1.7 mm; disk florets yellow, 4.5-5 mm, tube ca. 1.5 mm, lobes triangular, hairy, unequal, 4 short, 0.5-0.6 mm, 1 long, 1-1.2 mm. Achenes pale brown and blackish streaked, narrowly obovoid, 2.8-3 mm, sparsely strigose. Pappus brownish, 2- or 3-seriate; outer bristles short, 0.5-0.9 mm; inner bristles 4-5.5 mm. Fl. and fr. Jul-Aug.

● Alpine stony and sandy grounds, alpine meadows, montane river floodplains, field margins; 2200-5200 m. W Gansu, Qinghai, Xinjiang, Xizang, Yunnan.