Gentiana tetraphylla Kuzn.

Perennials 8-13 cm tall. Stems ascending, simple, papillate. Basal rosette leaves absent or poorly developed; leaf blade triangular, 3-7 × 1-1.5 mm, membranous, apex acute. Stem leaves in whorls of 4 (or 5), larger and more crowded toward apex, uppermost leaves surrounding calyx; leaf blade base connate for 2-3 mm, margin smooth, apex obtuse, midvein abaxially distinct. Lower to middle stem leaves oblong to ovate, 2-3 × 1-1.5 mm, apex acute; upper leaves linear-spatulate to narrowly oblong, 4-8 × 1-1.5 mm. Flowers terminal, solitary, sessile, 6-8-merous. Calyx tube narrowly obconic, 0.9-1.2 cm; lobes linear-spatulate to narrowly oblong, 4-5 mm, herbaceous, base narrowed, margin smooth, apex obtuse, midvein distinct. Corolla pale blue, with pale yellow base and dark blue stripes, tubular to tubular-campanulate, 4-4.5 cm; lobes ovate, 2-2.5 mm, margin denticulate, apex obtuse with a caudate tip less than 1 mm; plicae oblong to broadly ovate, 0.8-1 mm, margin denticulate, apex obtuse. Stamens inserted just below middle of corolla tube; filaments 0.9-1.1 cm; anthers ellipsoid, 2-2.5 mm. Ovary ovoid-ellipsoid, 7-8 mm; gynophore 0.9-1.1 cm. Style 4-4.5 mm; stigma lobes linear. Fl. Aug.

N and W Sichuan.

* Grassland slopes; 3300-4500 m.

Gentiana ×quaterna Harry Smith; G. ×quaterna subsp. longiflora Harry Smith.

Gentiana tetraphylla là một loài thực vật có hoa trong họ Long đởm. Loài này được Maxim. ex Kusn. mô tả khoa học đầu tiên năm 1894.

四叶龙胆（学名：Gentiana tetraphylla）为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3,300米至4,500米的地区，多生于山坡草地，目前尚未由人工引种栽培。