Microstegium geniculatum

曲膝莠竹

endemic

Microstegium geniculatum (Hayata) Honda

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

Honda, Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 3: 410. 1930. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot.)

台灣首次記錄發表文獻

同發表文獻

異名

Pollinia geniculata Hayata

Hayata, Icones Plantarum Formosanarum 7: 73. 1918. (Icon. Pl. Formos.)
Microstegium fauriei Honda ssp. geniculatum (Hayata) Koyama

Koyama, Grasses of Japan and its Neighboring Regions 516. 1987. (Grass. Jap. Neighb. Reg.)

各語言俗名

中

膝曲莠竹. 假儉草.
英

Bent-awned sasa grass.
日

すすきささがや.

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, ca. 1 mm in diam.
Blade 6-8 cm long, 5 mm wide; ligule tongue shaped, pubescent abaxially.
Racemes 4, subdigitately arranged, 5-8 cm long. Spikelets paired, onomorphic, upper pedicellate, lower sessile, ca. 3.5 mm long; joint of rachis longer than spikelet. Lower glume linear, as long as spikelet, subcoriaceous, 2-keeled, short ciliate along keels, furrowed and siliceous abaxially, 2-toothed at apex; upper glume deltoidlanceolate, 1-keeled, margins inrolled, fimbriate, ca. 3 mm long, with a slender awn of ca. 3.5 mm long. Lower floret reduced. Upper floret minute, chartaceous, lemma ca. 0.3 mm long, with an awn 14-20 mm long.

分布

台灣 : usually growing in mountainous regions.

引證標本

TAIPEI: Keelung, Hsu 399. ILAN: Taipingshan, Suzuki s. n. 15 Aug 1928. HSINCHU: Nankengchih, Hsu 505. MIAOLI: Senghsing, Hsu 1368. TAICHUNG: Anmashan, Chuang 713, Kao 4439. NANTOU: Chitou, Kuoh 3684, Hsu 6150. CHIAYI: Fenchihu, Feng 4938. HUALIEN: Mukuashan, Nakamura 4636.