凉山开口箭 liang shan kai kou jian

Tupistra liangshanensis Z. Y. Zhu in Z. Y. Zhu & J. L. Zhang, Acta Phytotax. Sin. 19: 521. 1981.

Rhizome terete, ca. 3 cm thick, stout; nodes dense. Leaves 5 or 6, basal, slightly distichous equitant; petiole 8--12 cm; leaf blade narrowly elliptic to elliptic-lanceolate, ca. 22 × 7--12 cm. Spike 5--6 × 2--3 cm, densely many flowered, with several sterile bracts apically; peduncle 1--3 cm; fertile bracts 2 per flower, ovate-lanceolate, 1--1.7 cm × 3--7 mm. Perianth subcampanulate, 8--11 mm; tube 4--6 mm; lobes yellowish white, suborbicular or broadly ovate, 4--5 × 5--6 mm, fleshy. Filaments proximally widened and adnate to perianth tube, widened part entire, free part 1--1.5 mm; anther connective protruding from locules, recurved, ca. 1.5 mm. Ovary globose, ca. 2 mm in diam. Style 0.5--1 mm or inconspicuous; stigma white, 3-lobed. Fl. Nov.

* Moist places in thickets along valleys or streams; ca. 2500 m. SW Sichuan (Puge Xian).