青藏龙胆 qing zang long dan

Perennials 5-10 cm tall. Stems ascending, simple, glabrous. Basal rosette leaves poorly developed; leaf blade linear-lanceolate, 1-2 cm × 2-2.5 mm, base connate for 2-4 mm, margin scabrous, apex acuminate, midvein distinct. Stem leaves larger, more crowded toward apex, uppermost surrounding calyx; leaf blade base obtuse and connate for 2-3 mm, margin scabrous, apex acuminate. Lower stem leaves narrowly oblong, 3-6 × 1.5-2 mm; middle to upper leaves linear, 0.6-2 cm × 1.5-2 mm. Flowers terminal, solitary, sessile. Calyx tube tubular to narrowly obconic, 1-1.4 cm; lobes green, linear, 0.6-1.4 cm, margin scabrous, apex acuminate, midvein distinct. Corolla dark blue, with pale yellow-white base and dark blue streaks and spots, tubular-campanulate to funnelform, 5-6 cm; lobes ovate-triangular, 6-7.5 mm, margin entire, apex acute; plicae broadly ovate, 4-5 mm, margin denticulate, apex obtuse. Stamens inserted at middle of corolla tube; filaments 7-11 mm; anthers narrowly ellipsoid, 2.5-3 mm. Style 4-5 mm; stigma lobes oblong. Capsules ellipsoid, 1.5-1.8 cm; gynophore to 2.5 cm, slender. Seeds light brown, broadly ellipsoid to subglobose, 0.8-1 mm. Fl. and fr. Jul-Oct.

* Alpine meadows, forests; 2800-3400 m. SW Gansu, SE Qinghai.