Gentiana arethusae Burkill

Perennials 10-15 cm tall. Stems very numerous, ascending, simple, papillate. Basal rosette leaves poorly developed; leaf blade triangular, 3-7 × 1-1.5 mm, membranous, margin weakly hispid, apex acute, midvein distinct. Stem leaves in whorls of 6 (or 7), larger toward apex, uppermost surrounding calyx; leaf blade base connate for 2-3 mm, margin smooth, apex acute to acuminate, midvein abaxially distinct. Lower stem leaves withered at anthesis, ovate-elliptic, 3-5 × 1-1.5 mm; middle to upper leaves 1-1.7 cm × 1-1.5 mm. Flowers terminal, solitary, sessile, (5- or) 6- or 7-merous. Calyx tube narrowly obconic, 1-1.3 cm; lobes linear, 1-1.4 cm, herbaceous, margin smooth, apex acuminate, midvein distinct. Corolla blue, with dark blue stripes, tubular-campanulate or campanulate-funnelform, 3.5-6 cm, throat 1.5-2.5 cm in diam.; lobes ovate, 4-5 mm, margin entire, apex obtuse with a caudate tip 2-2.5 mm; plicae broadly ovate, 1-1.5 mm, margin entire, apex obtuse. Stamens inserted at basal part of corolla tube; filaments 1.7-2 cm; anthers ellipsoid, 2-2.5 mm. Style 3-5 mm; stigma lobes linear. Capsules ellipsoid, 1.4-1.6 cm; gynophore to 3 cm. Seeds light brown, ellipsoid, 0.8-1 mm. Fl. and fr. Aug-Sep.

E Sichuan, SE Xizang, NW Yunnan

* 2000-4800 m.

Gentiana arethusae est une espèce végétale de la famille des Gentianaceae.

Il s'agit d'une plante vivace de Chine (Sichuan, Yunnan, Tibet) de 18 cm de hauteur, qui pousse sur pelouse alpine entre 3 800 et 4 600 m d'altitude.

Gentiana arethusae là một loài thực vật có hoa trong họ Long đởm. Loài này được Burkill mô tả khoa học đầu tiên năm 1906.

川东龙胆（学名：Gentiana arethusae）是龙胆科龙胆属的植物，是中国的特有植物。分布于中国大陆的四川等地，生长于海拔2,000米至3,000米的地区，一般生于山坡草地，目前尚未由人工引种栽培。