194. Gentiana thunbergii (G. Don) Grisebach in A. de Candolle, Prodr. 9: 108. 1845.
丛生龙胆 cong sheng long dan
Annuals or biennials 5-15 cm tall. Stems ascending to erect, few branched from base, glabrous. Basal leaves withered at anthesis; petiole 1-2 mm, glabrous; leaf blade involucriform, ovate-elliptic, ovate, or rarely obovate-oblong, 1-3 × 0.7-2.2 cm, margin cartilaginous and smooth, apex acuminate to rarely rounded, midvein distinct. Stem leaves 3-5 pairs, widely spaced; petiole 1.5-2 mm, entirely connate, glabrous; leaf blade lanceolate to oblong, 6-8 × 1-4.5 mm, shorter than internodes, margin of lower stem leaves narrowly cartilaginous, that of upper stem leaves broadly membranous, apex obtuse, vein 1. Flowers few. Pedicel 2-4 mm, sometimes to 1.2 cm in fruit, glabrous. Calyx narrowly obconic, (6-)8-9 mm; lobes narrowly triangular, 2.5-3 mm, margin membranous, apex acuminate, midvein distinct. Corolla blue, funnelform, (1.2-)1.5-2 cm; lobes ovate, 2-3 mm, margin entire, apex obtuse; plicae broadly oblong, 1-1.5 mm, margin entire or denticulate, apex rounded. Stamens inserted at middle of corolla tube, equal; filaments 2-2.5 mm; anthers ellipsoid, 1.2-1.5 mm. Style 2-2.5 mm; stigma lobes linear-oblong. Capsules narrowly obovoid, 6-8 mm; gynophore to 2.8 cm. Seeds brown, ellipsoid, 1-1.2 mm. Fl. and fr. Jul-Sep.
1300-1800 m. Guangdong, Guangxi, Heilongjiang, Hunan, Jiangxi, Jilin, Liaoning, Shanxi [Japan, Korea]
