多桿畫眉草

Eragrostis niwahokori Honda, Bot. Mag. Tokyo 41: 387. 1927, Monogr. Poac. Jap. 101. 1930.

Culm tufted, erect or ascending, basal nodes geniculate; sheath compressed with keel; ligule a ring of 0.5 mm long hairs. Inflorescence an open panicle, basal branches nearly whorled, axils glabrous. Spikelets 3-10-flowered, dark green in color, about 2.5-4.5 mm long; glumes minute, membranous, unequal, falling off when mature; lower glume about 0.6 mm long, narrow, nerves obscure; the upper glume oblong-ovate, about 1 mm long, 1-nerved; lemma keeled, membranous, semi-ovate in side view, about 1.5 mm long, 3-nerved, falling off when mature; palea membranous, 2-keeled, blunt at the apex, about 1 mm long, persistent or tardily falling off; anthers 3, minute about 3 mm long. Caryopsis about 0.8 mm long, with longitudinal stripes. about 0.8 mm long, with longitudinal stripes.

TAIPEI: Kuanyingshan, Hsu 350. ILAN: Lotung, Yamamoto 3680. MIAOLI: Tahu, Chen 1. TAICHUNG: Lishan, Hsu 12478; Pahsienshan, Hsu 415. NANTOU: Chitou, Sasaki s. n. Dec. 4, 1933. CHIAYI: Chiayi, Yamashita 310. TAITUNG: Chihpen, Hsu 965. HUALIEN: Hualien, Yamamoto 2817; Tienhsiang, Hsu 3723.

Distributed in India, South-east Asia, China to Japan.

This is a common weed growing along roadsides and in waste field, especially common in flower pots.