藏南绿绒蒿 zang nan lü rong hao

Herbs, perennial, caespitose, with very dense fibrous leaf bases. Taproot cylindrical, plump, ca. 5 mm in diam. Leaves all basal; petiole linear, 1.5-2.5 cm; blade glaucous abaxially, green adaxially, lanceolate or narrowly rhombic, (5-)10-15(-20) × (2-)3-5(-8) cm, both surfaces glabrous or rarely abaxially sparsely setose, veins basal, dichotomously branched, abaxially distinct, base cuneate and decurrent to petiole, margin entire, apex rounded. Scape 1-5, 8-15 cm, fulvous extended setose. Flowers solitary on scape, often nutant; buds ovoid, ca. 1 cm. Sepals adaxially pilose, margin membranous. Petals 4, blue, broadly obovate, 2-3 × 1.5-2 cm, apex rounded or truncate, irregularly incised. Filaments filiform, 6-8 mm; anthers yellow, oblong, ca. 1.5 mm. Ovary elliptic, 5-7 mm, inclined setose; styles 1.5-2 mm; stigmas 4-lobed, lobes decurrent. Capsule (immature) elliptic, 1-1.2 cm, sparsely setose (mature fruit not seen). Fl. Jul-Aug.

● Alpine meadows; 4300-4600 m. SE Xizang (Cona).