Gentiana altorum H. Smith

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.

W Sichuan, SE Xizang.

* Meadow slopes; 3700-4200 m.

Gentiana altorum là một loài thực vật có hoa trong họ Long đởm. Loài này được Harry Sm. ex C.Marquand mô tả khoa học đầu tiên năm 1937.

道孚龙胆（学名：Gentiana altorum）为龙胆科龙胆属的植物，为中国的特有植物。分布于中国大陆的四川、西藏等地，生长于海拔3,700米至4,200米的地区，见于山坡草甸，目前尚未由人工引种栽培。