Microstegium vimineum

柔枝莠竹

Microstegium vimineum (Trin.) A. Camus

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

A. Camus, Annales de la Société Linnéenne de Lyon, sér. 2 68: 201. 1921. (Ann. Soc. Linn. Lyon, sér. 2)

台灣首次記錄發表文獻

Honda, Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 3: 407. 1930. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot.)

異名

Microstegium vimineum (Trin.) A. Camus var. imberbe (Nees) Honda

Honda, Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 3: 408. 1930. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot.)
Microstegium vimmeum (Trin.) A. Camus var. polystachum (Fr. & Sav.) Ohwi

Ohwi, Acta phytotaxonomica et geobotanica eng 11: 156. 1942. (Acta Phytotax. Geobot.)

各語言俗名

英

Flexible sasa grass.
日

あしぼそ.

參考文獻

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Culms geniculate at basal node, ca. 1 mm thick.
Blade ca. 4.5 cm long, 6-7 mm wide, tomentose, especially abaxially; ligule 0.3-0.4 mm long, hispid abaxially.
Racemes 1-3, subdigitately arranged, ca. 5 cm long. Spikelets paired, monomorphic, upper pedicellate, lower sessile, ca. 4.5 mm long; joint of rachis shorter than spikelet. Lower glume chartaceous, lanceolate, as long as spikelet, 2-keeled, scabrous on keels, margins fimbriate, nerves anastomosing; upper glume deltoid;lanceolate, 1-keeled, pointed, margins membranaceous, inrolled and fimbriate; lower lemma hyaline; lanceolate or linear, acute or 2-cleft, ca. 3 mm long; upper lemma deltoid, chartaceous, ca. 1 mm long with an awn of ca. 4 mm long, arising from apex; upper palea lanceolate-deltoid, ca. 1.2 mm long, chartaceous.
Caryopsis ca. 3.5 mm long; embryo 1/2 its length of caryopsis.

分布

台灣 : common along ditches and on hillsides.
世界 : Distributed from Northeastern India to South-eastern Asia, China and Japan.

引證標本

TAIPEI: Kuangyingshan, Hsu 1126*. Shimen, Hsu 1254. ILAN: Yuenyanghu, Hsu 14552. TAOYUAN: Neili, Hsu 1235. MIAOLI: Senghsin, Hsu 1366. NANTOU: Sun Moon Lake, Hsu 1329. CHIAYI: Fengchihu, Kao 4944. TAINAN: Hsinhuatien, Hsu 185.