Perennials with knotty rhizome; culm erect, base geniculate. Sheath compressed and keeled; ligule
a ring of haris. Spikelets ca. 2.5 mm long; glumes membranaceous; lower glume acute, to 1/3 length of
spikelet, 3-veined; upper glume obtuse, to 1/2 as long as spikelet, 5-veined; lower lemma membranaceous,
as long as spikelet, 5-veined; palea flattened, 2-keeled, as long as lemma; upper lemma indurate,
rugose, 5-veined, palea flattened abaxially, 2-keeled, nearly as long as lemma and spikelet; anthers up
to1 mm long. Caryopsis ca. 1.5 mm long, clasped by broad margins of palea.
ILAN: Kuaishan, Kuoh 2471.TAIPEI: Shihmen, Hsu 1262. TAOYUAN: Neili, Hsu 1237. HSINCHU: Hsinchu,
Huang 2112; Yuen Yang Lake, Hsu & Kuoh 14532. MIAOLI: Tahu, Cheng 78. TAICHUNG: Lishan, Kuoh
80122. NANTOU: Kuantaochi, Hsu 10659; Sun Moon Lake, Hsu 1314. TAINAN: Hsinhua, Hsu 326. PENGHU:
Hongkuawy, Hsu 11553; Makung, Kuoh 1099. PINGTUNG: Ssuchungchi, Hsu 1111. TAITUNG: Lanyu Is., Hsu
1003; Tawu, Hsu 330. HUALIEN: Chilaishan, Sasaki s. n.
Originally from tropical America, introduced into other countries. Taiwan, in moist places.
midrib 中肋: (sm)small:with one vascular bundle
leaf surface 表面: (fla)flat surface
sclerenchyma 厚壁組織: (boscl)(bostr)on both sides of veins as strand or girder
chlorenchyma 葉綠組織: (radia)cells radiate and lesser than bundle sheath cell in width
bundle sheath 維管束鞘: (sk)single bundle sheath with conspicuous chloroplast
buliform cells well developed 泡狀細胞發達: (bboth)appear both in adaxial and abaxial side
chlorenchyma cell number between two adjacent veins: 3
chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (per)large amount and in peripheral site
mestome sheath 內束鞘細胞: (Xyms -)metaxylem pole adjacent with outer bundle sheath
distance between two adjancent vein 脈間距: 85 micrometer
length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 3
chlorenchyma cell shape in LS 葉綠細胞縱面形狀: lobed