米林龙胆 mi lin long dan

Annuals 2-5 cm tall. Stems ascending, much branched from base, basally glabrous, apically sparsely papillate. Basal leaves withered at anthesis; petiole 0.8-1 mm, glabrous; leaf blade elliptic to ovate-elliptic, 5-6 × 2-3.5 mm, glabrous, base narrowed, margin indistinctly cartilaginous and densely ciliolate, apex acute and cuspidate, midvein indistinct. Stem leaves widely spaced, flat; petiole longer than leaf blade, papillate, petiole tube 0.7-1.5 mm; leaf blade spatulate to orbicular-spatulate, 4-6 × 1.5-2.5 mm, shorter to longer than internodes, abaxially glabrous, adaxially glabrous or papillate, base narrowed, margin densely ciliolate, apex rounded and mucronate, veins indistinct. Pedicel 2-15 mm, sparsely papillate. Calyx obconic, 5-7 mm, tube membranous; lobes recurved, suborbicular, 1.5-2 mm, papillate, base narrowed, margin densely ciliolate, apex rounded and mucronate, veins indistinct. Corolla blue, with pale yellow-green base and blue-gray throat, tubular, 7-9 mm; lobes ovate-orbicular, 1-1.2 mm, margin entire, apex rounded and mucronate; plicae ovate, 0.8-1 mm, margin denticulate, apex obtuse. Stamens inserted at middle of corolla tube, equal; filaments 2.5-3 mm; anthers ellipsoid, 0.5-0.7 mm. Style 1-1.5 mm; stigma lobes oblong. Capsules narrowly obovoid, 3.5-5 mm; gynophore 1.3-2 cm, slender. Seeds light brown, ellipsoid, 1-1.4 mm. Fl. and fr. Jul-Aug.

* Alpine meadows, scrub meadows; 3900-4500 m. SE Xizang.