朝鲜龙胆 chao xian long dan

Perennials 30-70 cm tall. Stems glabrous. Lower stem leaves scalelike, 1-3 cm; middle to upper leaves lanceolate, 5.5-15 × 1-1.5 cm, both ends narrowed, margin slightly revolute and smooth, veins 1-3 and prominent; upper leaves slightly smaller, longer than flower clusters but not surrounding them. Inflorescences of few to many-flowered terminal clusters, also in subapical, axillary clusters on short pedunclelike branches; bracts ovate-lanceolate, 2-3 cm × 4-7 mm. Flowers sessile. Calyx tube 1.4-1.6 cm, sometimes split on 1 side; lobes linear to narrowly triangular, (3.5-)8-10 mm, unequal, margin smooth, apex acuminate to obtuse. Corolla blue-purple, tubular-campanulate to funnelform, 4-5 cm; lobes ovate, 6-7 mm, apex obtuse; plicae oblique, broadly triangular to truncate, 1-1.5 mm, margin entire or denticulate. Stamens inserted at middle of corolla tube; filaments 0.9-1.2 cm; anthers narrowly ellipsoid, 3.5-4.5 mm. Style 3-4 mm. Capsules 1.7-2 cm; gynophore to 1.3 cm. Seeds 1.8-2.5 mm, broadly winged. Fl. and fr. Aug-Sep.

Steppes, clearings in forests. Jilin [Korea].