利川开口箭 li chuan kai kou jian

Tupistra lichuanensis Y. K. Yang et al., J. Wuhan Bot. Res. 9: 40. 1991.

Rhizome slightly curved, subterete, 1--2.5 cm thick, stout; nodes dense. Leaves (4--)6--9, nearly distichous equitant, sessile, strap-shaped, 24--35 × 0.4--1.2 cm, subleathery, base obviously dilated and clasping, apex acuminate. Spike 1--3.2 × 0.6--1.2 cm, densely (2--)8--14-flowered, usually with 3--7 sterile bracts apically; peduncle 1.7--10 cm; fertile bracts pale yellow, sometimes greenish, ovate to lanceolate, 2.5--5 × 0.7--1.2 mm, membranous. Perianth yellowish green, subcampanulate, fleshy, with a cushionlike, ringed, fleshy appendage in throat; tube without brown spots, 2--3.5 × 2--3 mm; lobes ± spreading, ovate-deltoid to ovate-elliptic, 2--3.5 × 2--2.5 mm, margin white, membranous, erose, apex usually caudate, rarely subobtuse. Filaments with free part 0.2--0.4 mm; anthers subovate, 1--1.4 mm. Ovary ovoid, 2--2.5 mm in diam. Style to 0.5 mm; stigma obtusely 3-angled, distinctly 3-lobed. Berries red at maturity, ovoid, 5--7 mm in diam. Fl. Apr.

* 1100--1500 m. SW Hubei (Lichuan Xian).