生活型

herb

形態特徵

• Culms geniculate, ca. 1.5 mm across.
• Blade ca. 7 cm long, 7 mm wide, nearly glabrous; ligule tongue-like, hispid abaxially, ca. 1.4 mm long; sheath glabrous.
• Racemes 5-6, subdigitately arranged, ca. 5-6 mm long. Spikelets paired, monomorphic, upper pedicellate, lower sessile, ca. 3.2 mm long, longer than joint of rachis. Lower glume subcoriaceous, lanceolate, 2-keeled, ciliate along keels, furrowed abaxially, as long as spikelet; upper glume deltoid-lanceolate, 1-keeled, keel ciliate, margins inrolled, fimbriate, tipped with a slender awn nearly as long as glume; lower lemma sometimes present, linear, hyaline, 1-nerved, ending in a long slender awn of ca. 8 mm long. Upper floret minute; lemma ca. 0.2 mm long, with a flexuous awn of ca. 15 mm long; palea chartaceous, ovate, with a sinus or irregular at apex, ca. 0.5 mm long.
• <i>Microstegium glaberrimum</i> may be only a form of <i>Microstegium ciliatum</i>.

分布

• 台灣 : hillsides.

引證標本

TAIPEI: Kuanyingshan, Hsu 587; Wulai, Hsu 71. MIAOLI: Nanchuang, Hsu 12901. TAICHUNG: Hsinshe, Oomuna 27. NANTOU: Chitou, Hsu 258. KAOHSIUNG: Shihshan, Hsu 13826. TAITUNG: Tsaopu, Hsu 1025; Lanyu Is., Sasaki s. n. 30 Oct 1934.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 564. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)