多节细柄草 duo jie xi bing cao

Andropogon micranthus Kunth var. spicigerus (Bentham) Hackel; A. parviflorus Roxburgh var. spicigerus (Bentham) Domin; A. spicigerus (S. T. Blake) Reeder; Bothriochloa spici-gera (Bentham) T. Koyama; Capillipedium parviflorum (R. Brown) Stapf var. spicigerum (Bentham) C. Hsu; Chrysopogon parviflorus (R. Brown) Bentham var. spicigerus Bentham.

Perennial. Culms tufted, up to 150 cm tall, unbranched, nodes bearded. Leaf sheaths usually pilose, ciliate at mouth; leaf blades 15–40 × 0.5–0.8 cm, scaberulous or pubescent, usually hispid with tubercle-based hairs toward base, base rounded, apex acuminate; ligule 0.5–1 mm. Panicle oblong-ovate in outline, 10–18 × 5–8 cm; branches untidily flexuous, pilose in axils; racemes composed of 3–7 spikelet pairs below the terminal triad, purple; rachis internodes and pedicels ciliate. Sessile spikelet 3–4 mm; lower glume oblong-lanceolate, slightly glossy, back 4–5-veined, scarcely depressed along midline, sparsely hispidulous, margins keeled, pectinate-ciliate above middle, apex narrowly obtuse; upper glume ciliate along upper margins; awn of upper lemma 1.2–1.8 cm. Pedicelled spikelet equaling the sessile and often staminate, or smaller and barren. Fl. and fr. autumn. 2n = 40.

Mountain slopes. Hong Kong, Jiangxi, Taiwan, Zhejiang [Indonesia, Japan (Ryukyu Islands), Philippines; Australia].

This species is thought to have arisen by hybridization between Capillipedium parviflorum and Bothriochloa bladhii, resulting in intermediates with several spikelet pairs per raceme. It tends to be slightly more robust than C. parviflorum.