181. Gentiana ludingensis T. N. Ho, Acta Biol. Plateau Sin. 3(3): 29. 1984.
泸定龙胆 lu ding long dan
Annuals 3-6 cm tall. Stems ascending, branched throughout, papillate. Basal leaves withered at anthesis; petiole 1-2 mm, densely papillate; leaf blade narrowly elliptic to elliptic, 1.5-3 cm × 4-6 mm, base narrowed, margin cartilaginous and ciliolate, apex obtuse and cuspidate, midvein distinct. Stem leaves widely spaced; petiole tube 1-1.5 mm, papillate; leaf blade oblanceolate to spatulate, 6-9 × 1-2.2 mm, shorter than internodes, base narrowed, margin cartilaginous and ciliolate, apex rounded and mucronate, midvein distinct. Flowers subsessile. Calyx obconic, 5-6 mm, tube membranous; lobes recurved, ovate-elliptic to ovate, 1.5-1.8 mm, outside minutely papillate, base rounded and contracted, margin cartilaginous and ciliolate, apex acute and cuspidate, midvein prominent. Corolla pale blue, with short dark blue lines in throat, tubular, 7-8 mm; lobes ovate, 1.8-2 mm, margin entire, apex obtuse and mucronate; plicae ovate, 1-1.2 mm, margin entire, apex obtuse. Stamens inserted just below middle of corolla tube, equal; filaments 2-2.5 mm; anthers ellipsoid, 0.5-0.8 mm. Style 1-1.5 mm; stigma lobes oblong. Capsules narrowly obovoid to obovoid, 3.5-4.5 mm; gynophore to 9 mm. Seeds light brown, ellipsoid, 0.6-1 mm. Fl. and fr. Mar-Jun.
* River banks, roadsides, grassland slopes, wastelands, scrub, forests; 2300-3000 m. W Sichuan.