道孚龙胆 dao fu long dan

Perennials 4-7 cm tall. Stems ascending, simple, with several shoots not flowering, glabrous. Basal rosette leaves poorly developed; leaf blade lanceolate, 5-10 × 2.5-4 mm, base connate for 2-4 mm, margin smooth or scabrous, apex acuminate, midvein distinct. Stem leaves larger toward apex, uppermost surrounding calyx; leaf blade narrowly elliptic to elliptic, 5-8(-13) × 2.5-4 mm, base obtuse and connate for 2-3 mm, margin smooth or scabrous, apex acute to obtuse, midvein distinct. Flowers terminal, solitary, sessile, 5-merous. Calyx tube narrowly obconic, 7-11 mm; lobes green, equal, narrowly elliptic to elliptic, 5-7 mm, base slightly narrowed, margin smooth or scabrous, apex obtuse, midvein distinct. Corolla pale blue, with pale yellow base and dark blue streaks, sometimes with dark blue spots, funnelform, 3-4.5 cm; lobes ovate, 4-6 mm, margin entire, apex acute to obtuse; plicae broadly ovate, 2-2.5 mm, margin denticulate, apex obtuse. Stamens equal, inserted just below middle of corolla tube; filaments 7-9 mm; anthers narrowly ellipsoid, 2-3 mm. Style 4-5 mm; stigma lobes linear. Capsules ovoid-ellipsoid, 1.1-1.4 cm; gynophore to 1.5 cm. Seeds light brown, subglobose, 1-1.2 mm. Fl. and fr. Aug-Sep.

* Meadow slopes; 3700-4200 m. W Sichuan, SE Xizang.