太白龙胆 tai bai long dan

Gentiana tsinlingensis H. Limpricht.

Perennials 10-25 cm tall. Rhizomes short. Stems 1-3, erect, simple, glabrous. Basal leaves in 1-4 erect rosettes; petiole 2-5 cm, membranous; leaf blade linear-lanceolate to linear-elliptic, 1.5-8 cm × 4-7 mm, base narrowed, apex acuminate to obtuse, vein 1. Stem leaves 2-4 pairs; petiole to 2.5 cm, shorter to absent toward apex; leaf blade narrowly elliptic to lanceolate, 2-3.5 cm × 3-6 mm, both ends attenuate, vein 1. Inflorescences large terminal clusters, sometimes also in few-flowered subapical axillary clusters on pedunclelike branches. Flowers sessile. Calyx narrowly obconic, 1-1.5 cm, tube entire; lobes spreading to reflexed, linear to narrowly triangular, 3.5-5.5 mm, subequal, apex acuminate. Corolla yellow, with dark blue spots, funnelform, 2-3 cm; lobes ovate, 3-3.5 mm, margin denticulate, apex rounded; plicae triangular to obliquely truncate, 1-1.5 mm, margin denticulate. Stamens inserted at basal part of corolla tube; filaments 6-9 mm; anthers narrowly ellipsoid, 2.5-3.5 mm. Style 1.5-2(-3) mm; stigma lobes linear. Capsules ovoid-ellipsoid, 1.1-1.5 cm; gynophore to 1.7 cm. Seeds light brown, ellipsoid, 2-2.5 mm. Fl. and fr. Jun-Aug.

* Hillsides; 1900-3400 m. Shaanxi (Taibai Shan).