多雄山龙胆 duo xiong shan long dan

Perennials 5-10 cm tall. Taproot cylindric, long, usually 3-5 mm in diam. Vegetative stems sometimes prolonged and few branched; branches prostrate, stout, with dense brown membranous remnants of old petioles, each with an apical rosette; flowering stems annual, ascending, simple. Basal leaves in 2-5 usually lax rosettes; petiole 5-7 mm, membranous; leaf blade narrowly elliptic, 1-2.5 cm × 2.5-4.5 mm, base narrowed, margin scabrous, apex obtuse, vein 1. Stem leaves 3-5 pairs, very widely spaced; petiole 3-5 mm; leaf blade elliptic to ovate-elliptic, 7-11 × 3-4.5 mm, base narrowed, apex obtuse, vein 1. Flowers terminal, solitary. Pedicel (0.5-)1-2 cm. Calyx cupular, tube 6-7 mm; lobes linear-lanceolate, 2-2.5 mm, equal, apex acute, vein 1. Corolla dark blue, unspotted, tubular to tubular-campanulate, 1.7-2.2 cm; lobes ovate, 4-4.5 mm, margin entire, apex obtuse; plicae auricular, 0.5-1 mm, apex acute. Stamens inserted at basal part of corolla tube; filaments 0.9-1.1 cm; anthers 1.2-1.5 mm. Style absent; stigma lobes linear. Capsules narrowly ellipsoid, 1.3-1.5 cm; gynophore 6-7 mm. Seeds brown, ellipsoid, 0.8-1 mm; seed coat alveolate. Fl. and fr. Aug-Oct.

Alpine meadows; 3900-4300 m. S and SE Xizang [Bhutan, NE India].