圆腺獐牙菜 yuan xian zhang ya cai

Perennials 12-18 cm tall. Rhizomes blackish, short, with few slightly fleshy rootlets. Stems erect, striate, simple, base sheathed by blackish remains of old petioles. Basal leaves petioles flattened, 2-2.5 cm, base connate; leaf blade ovate, 3-3.5 cm, base obtuse and decurrent into wings of petiole, apex acute. Middle stem leaves sessile or short petiolate; leaf blade similar to basal leaves but smaller, 2-3 × 0.6-2.3 cm; upper leaves sessile, bractlike, narrowly oblong to elliptic, 1-1.2 cm × 4-5 mm. Inflorescences racemelike, (1- or) 2-5-flowered. Flowers 5merous. Pedicel spreading, 2-4 cm. Calyx lobes lanceolate, 6-8 mm, apex acuminate, veins 3. Corolla pale yellow-green, with purple spots, 1.4-1.8 cm in diam., tube 1.5-2 mm; lobes obovate, 1.2-1.5 cm, base contracted into a claw, apex rounded. Nectaries 2 at middle of each corolla lobe, orbicular, close to each other, with inflexed fimbriae 1-2 mm. Filaments 5-6 mm, base few barbate; anthers ellipsoid, 2-2.5 mm. Ovary ellipsoid, 6-7 mm. Style indistinct; stigma lobes suborbicular. Fl. May-Jun.

* Hillsides; ca. 3100 m. Xizang-Yunnan border (Taxui Shan region).