Gentiana forrestii C. Marquand

Annuals 3-5 cm tall. Stems purple, prostrate to ascending, 2 or 3 × dichotomously branched from base, glabrous. Basal leaves withered at anthesis; petiole 1-2 mm; leaf blade involucriform, ovate-orbicular, 0.7-1.7 × 0.7-1.3 cm, margin indistinct and cartilaginous, apex rounded with a recurved tip; veins 1-3, distinct, slender. Stem leaves 2 or 3 pairs, widely spaced; petiole tube 1.5-2 mm; leaf blade 4-5 × 2-4.5 mm, much shorter to slightly longer than internodes. Lower stem leaves spatulate to obovate; upper leaves linear to elliptic, margin membranous and smooth or ciliolate, apex acuminate to obtuse, veins 1-3. Flowers few. Pedicel 0.5-2.5 cm, glabrous. Calyx narrowly obconic, 5-7 mm; lobes narrowly triangular, 2-3 mm, margin narrowly membranous, apex acute and apiculate, midvein distinct. Corolla inside white or pale blue, with blackish stripes in throat and sometimes blackish spots, funnelform, 1-1.3(-1.5) cm; lobes ovate, 2.5-3 mm, margin entire, apex obtuse; plicae oblong to ovate-orbicular, 1-1.5 mm, margin entire or denticulate, apex obtuse to truncate. Stamens inserted just below middle of corolla tube, unequal; filaments 2.5-4 mm; anthers ellipsoid, 0.5-0.7 mm. Style 1-1.5 mm; stigma lobes linear. Capsules narrowly obovoid, 3.5-4.5 mm; gynophore to 3.2 cm, stout. Seeds light brown, triquetrous, 1-1.2 mm. Fl. and fr. Apr-Aug.

SE Xizang, NW Yunnan.

* Grassland slopes, alpine meadows; 3000-4200 m.

Gentiana pallescens Harry Smith.

Gentiana forrestii là một loài thực vật có hoa trong họ Long đởm. Loài này được C.Marquand mô tả khoa học đầu tiên năm 1928.

苍白龙胆（学名：Gentiana forrestii）是龙胆科龙胆属的植物，是中国的特有植物。分布于中国大陆的云南等地，生长于海拔3,000米至4,200米的地区，常生于山坡草地以及高山草甸，目前尚未由人工引种栽培。