Gentiana cephalantha Franch. ex Hemsl.

Perennials (10-)20-50 cm tall. Stems glabrous or copiously glandular toward apex; vegetative stems short; flowering stems simple, ascending, base usually woody, basally horizontal, with a basal rosette. Basal leaves with petiole 0.7-3 cm, membranous; leaf blade 3.5-10 × 0.8-2.2 cm, narrowly elliptic to elliptic-lanceolate, uppermost leaves oblanceolate, base narrowed, margin slightly revolute and scabrous, apex acuminate to obtuse, veins 1-3. Stem leaves 4-10 pairs, distinctly larger toward apex, apically crowded and subtending terminal flower cluster; petiole 5-12 mm; leaf blade 3-7 × 1.2-2.2 cm. Inflorescences terminal clusters, (3-)5-12-flowered, occasionally also subapical axillary clusters on pedunclelike branches. Flowers sessile. Calyx obconic, 1.5-2 cm, tube membranous; lobes very unequal, herbaceous, base narrowed, margin ± scabrous, apex acuminate, midvein distinct; larger 2 lobes, spatulate, 7-9 mm, apex obtuse; smaller 3 lobes linear-lanceolate, 5.5-6.5 mm. Corolla blue, tubular-campanulate to funnelform, 2.5-3.5 cm; lobes ovate to triangular, 4-5 mm, margin entire, apex acute; plicae triangular, 1-1.5 mm, oblique, margin entire, apex acute. Stamens inserted at basal part of corolla tube; filaments 1.3-1.5 cm; anthers ellipsoid, 2.5-3 mm. Style 2-3 mm; stigma lobes linear. Capsules ellipsoid, 1.2-1.5 cm; gynophore to 1.7 cm. Seeds light brown, ellipsoid to subglobose, 0.4-0.6 mm. Fl. and fr. Aug-Nov.

Guangxi, Guizhou, Sichuan, Yunnan [Myanmar, Thailand, Vietnam]

1800-4500 m.

Gentiana cephalantha là một loài thực vật có hoa trong họ Long đởm. Loài này được Franch. ex Hemsl. mô tả khoa học đầu tiên năm 1890.

头花龙胆（学名：Gentiana cephalantha）是龙胆科龙胆属的植物，是中国的特有植物。分布于中国大陆的贵州、云南、广西、四川等地，生长于海拔1,800米至4,450米的地区，多生在林缘、山坡路边、山坡草地、灌丛中及林下，目前尚未由人工引种栽培。