滇龙胆草 dian long dan

Gentiana esquirolii H. Léveillé; G. rigescens var. stictantha C. Marquand; G. rigescens var. violacea Harry Smith.

Perennials (10-)20-50 cm tall. Flowering stems simple, erect, rigid, woody at base, papillate when young. Basal rosette absent or very poorly developed. Stem leaves 7-15 pairs; lower leaves 2 or 3 pairs, scalelike, membranous; middle to upper leaves with petiole 5-8 mm, margin ciliolate; leaf blade oblong, ovate-oblong, obovate-lanceolate, or obo-vate, 1.2-4.5 × 0.7-2.2 cm, thick herbaceous to subleathery, margin slightly revolute and scabrous, apex obtuse to rounded, veins 1-3. Inflorescences terminal clusters, 3-10-flowered, rarely also subapical axillary clusters on pedunclelike branches. Flowers sessile. Calyx narrowly obconic, 1-1.2 cm, tube membranous; lobes very unequal, larger 2 lobes oblong to obovate-oblong, 5-8 mm, base narrowed, apex obtuse, vein 1; smaller 3 lobes, linear to lanceolate, 2-3.5 mm, base not narrowed, apex acuminate, vein 1. Corolla violet, with blue spots in throat, tubular-campanulate, 2.5-3 cm; lobes broadly ovate, 5-5.5 mm, margin entire or denticulate, apex acute; plicae triangular, 1.5-2 mm, oblique, margin entire, apex obtuse. Stamens inserted at basal part of corolla tube; filaments 1.4-1.6 cm; anthers narrowly ellipsoid, 2.5-3 mm. Style 2-3 mm; stigma lobes linear. Capsules ovoid-ellipsoid to ellipsoid, 1-1.2 cm; gynophore to 1.5 cm. Seeds light brown, subglobose, 0.6-1 mm. Fl. and fr. Aug-Dec.

Grassland slopes, valleys, scrub, forests; 1100-3000 m. Guizhou, Sichuan, Yunnan [Myanmar].