开口箭 kai kou jian

Tupistra chinensis Baker, Hooker’s Icon. Pl. 19: t. 1867. 1889; Campylandra kwangtungensis Dandy; C. pachynema F. T. Wang & T. Tang; C. viridiflora (Franchet) Handel-Mazzetti; C. watanabei (Hayata) Dandy; Rohdea japonica (Thunberg) Roth var. watanabei (Hayata) S. S. Ying; R. watanabei Hayata; T. chlorantha Baillon; T. fargesii Baillon; T. heensis Y. Wan & X. H. Lu; T. kwangtungensis S. S. Ying; T. lorifolia Franchet; T. sparsiflora S. C. Chen & Y. T. Ma; T. viridiflora Franchet.

Rhizome slightly elongate, terete, 1--1.5 cm thick. Leaves 4--8(--12), basal, distichous equitant; petiole 3--8 cm, usually conduplicate; leaf blade linear-lanceolate to oblanceolate, 15--65 × 1.5--9.5 cm. Spike 2.5--14 cm, with several sterile bracts apically; peduncle 1--6(--15) cm; fertile bracts green, 4--7 mm. Perianth campanulate, 5--7 mm; tube 2--2.5 mm; lobes ovate, 3--5 × 2--4 mm. Filaments proximally widened and adnate to perianth tube, widened part sometimes connate into a thin ring in perianth tube or throat, apical part incurved, 1--2 mm. Ovary subglobose, 2--2.5 mm in diam. Style to 1 mm; stigma 3-lobed. Berries purple-red at maturity, globose, 8--10 mm in diam. Fl. Apr--Jun, fr. Sep--Nov. 2 n = 38*.

* Moist places in forests, hillsides along streams; 600--3000 m. Anhui, Fujian, Guangdong, Guangxi, Henan, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan.