峨眉开口箭 e mei kai kou jian

Tupistra emeiensis Z. Y. Zhu, Acta Bot. Yunnan. 4: 271. 1982.

Rhizome stemlike, elongate, to 24--32 cm × 2--4 mm; nodes spaced. Stem elongate. Leaves 5 or 6, spaced; petiole 2--2.5 cm, basally widened and clasping; leaf blade subelliptic or ovate, 5--6.5 × 2.5--3.5 cm, papery or subleathery. Spike 4--5 cm, 6--9-flowered, without sterile bracts apically; peduncle ca. 1 cm; fertile bracts elliptic-ovate or elliptic-lanceolate, 6--8 × ca. 2.5 mm. Perianth yellow-green; tube ca. 3 mm, throat with a thin, undulate-crenate ring of connate, widened filament bases; lobes narrowly ovate-oblong, 3--4 × ca. 2 mm. Filaments with incurved free part ca. 1 mm. Ovary obovoid-globose. Style inconspicuous; stigma 3-lobed. Fl. Jun--Jul.

* Bamboo forests, moist places in thickets, hillsides along valleys or streams; 1800--2500 m. C Sichuan (Emei Shan).