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FOC | Family List | FOC Vol. 16 | Gentianaceae | Gentiana

2. Gentiana leucantha Harry Smith ex T. N. Ho & S. W. Liu, Bull. Nat. Hist. Mus. London (Bot.). 23: 55. 1993.

黄耳褶龙胆 huang er zhe long dan

Perennials 2-5 cm tall. Taproot cylindric, 5-10 × ca. 0.5 cm. Stems perennial, many, prostrate to ascending, slender, simple. Basal rosette leaves absent or very small; leaf blade triangular, less than 5 mm. Stem leaves many, crowded, withering toward stem base; petiole 3-5 mm; leaf blade elliptic to ovate, 3.5-4 × 1.8-2.2 mm, base obtuse, margin cartilaginous and scabrous, apex acute and mucronate, vein 1. Flowers terminal, solitary, sessile. Calyx shallowly cupular, tube 5-6 mm; lobes slightly spreading, elliptic to ovate, 3-3.5 mm, unequal, apex acute to obtuse. Corolla white or pale yellow-white, tubular to tubular-campanulate, 1.3-1.5 cm; lobes elliptic-ovate to ovate, 4-5 mm, apex obtuse; plicae triangular, 2-2.5 mm, 2cleft. Stamens inserted at middle of corolla tube; filaments 6-8 mm; anthers 1.5-2 mm. Style 1-1.5 mm; stigma lobes narrowly triangular. Capsules sessile, narrowly ellipsoid, 1-1.2 cm. Seeds brown, ellipsoid, 1-1.2 mm. Fl. and fr. Jun-Aug.

Grassy and stony slopes, alpine meadows; 4000-4600 m. SE Xizang [NE Bhutan].


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