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

24. Swertia tibetica Batalin, Mém. Acad. Imp. Sci. Saint Pétersbourg. 14: 175. 1895.

大药獐牙菜 da yao zhang ya cai

Perennials 30-100 cm tall. Rhizomes blackish, short, with few slightly fleshy rootlets. Stems erect, robust, striate, simple, base sheathed by blackish remains of old petioles. Leaves mostly basal; petiole flattened, 2-7 cm, base connate; leaf blade narrowly oblong to elliptic-spatulate, 4.5-13.5 × 1-3.5 cm, base narrowed, apex acute to obtuse, veins 5-7(-9). Stem leaves 4-6 pairs, sessile or short petiolate with base connate; leaf blade elliptic-spatulate to ovate, 4-9 × 1-3 cm, base narrowed, apex acute, veins 3-5. Inflorescences racemelike, 5-7-flowered. Flowers 5merous. Pedicel erect, 7-8.5 cm. Calyx lobes lanceolate, 1.7-2 cm, margin narrowly membranous, apex acuminate, veins 1-3. Corolla yellow, 2.5-3.5 cm in diam., tube 1.5-2 mm; lobes oblong to ovate-oblong, 2.5-2.8 cm, apex obtuse and erose. Nectaries 2 per corolla lobe, cupular, with pilose fimbriae 2-2.5 mm. Filaments 1-1.2 cm, base few barbate; anthers narrowly ellipsoid, 2-3 mm. Style indistinct; stigma lobes suborbicular. Capsules narrowly ellipsoid, 2-2.5 cm. Seeds brown, broadly ellipsoid, longitudinally rugose, winged on edges. Fl. and fr. Jul-Nov.

* Streamsides, grasslands on hillsides, gravel slopes, forests, forest margins; 3200-4800 m. W Sichuan, NW Yunnan.


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