纤细婆罗门参 xian xi po luo men shen

Herbs to 20(-30) cm tall, perennial. Caudex stout. Stems few, simple, slender, erect, glabrous. Basal and lower cauline leaves lanceolate-subulate, 7-15 × 0.2-0.4 mm, margin sometimes adaxially rounded. Capitulum solitary; peduncle not inflated. Involucre 1.8-2.3 cm at anthesis, to 3.5 cm in fruit. Phyllaries 5-7, shorter than florets and ± equaling achenes with pappus. Ligules bicolored, abaxially with pink or mauve spot, adaxially yellow. Outer achenes 1.3-1.8 cm; body pale brown, slightly curviform, 1.3-1.6 mm in diam., slightly tuberculate, with small (to 40-50 µm in diam.) hollows in pericarp; beak slender, 5-7 mm. Pappus dirty white, 1.5-2 cm. Fl. and fr. Apr-Jun. 2n = 12, 24.

Mountain slopes, river terraces; 2500-3500 m. Xinjiang, Xizang [Afghanistan, N India, Kazakhstan, Kyrgyzstan, Nepal, Tajikistan, Uzbekistan].