碟花开口箭 die hua kai kou jian

Rohdea tui F. T. Wang & Tang, Bull. Fan Mem. Inst. Biol. 7: 284. 1937; Tupistra tui (F. T. Wang & Tang) F. T. Wang & S. Yun Liang.

Rhizome slightly elongate, terete, 0.8--1.3 cm thick; nodes dense. Leaves 4--6, basal or nearly so, nearly distichous equitant, sessile, usually linear-lanceolate, 25--50 × 2--3.5 cm. Spike 3--4.5 × 1--1.8 cm, densely many flowered; peduncle 6--15 cm; fertile bracts pale green, 2.5--4 × 2.5--3.5 mm, shorter than flowers, membranous. Perianth 4.5--5.5 mm, with a cushionlike, ringed, fleshy, papillose appendage in throat; tube adaxially brown spotted, 2--3 mm; lobes slightly spreading, yellow, ovate-deltoid, 2.5--3 × 2.5--3 mm, fleshy, margin white, membranous, erose. Filaments with very short free part. Ovary ovoid, 3.5--4 × 2--2.5 mm. Style very short; stigma scarcely 3-lobed, small. Fl. Jun.

* Forests, thickets; 1000--2500 m. S and W Sichuan.