Perennials; culms compressed, stoloniferous; flowering culms slender, glabrous, forming dense
mats when growing in poor soils or when closely grazed by cattle. Leaf blade linear-oblong-obtuse, 10-
18 cm long, 3-5 mm wide, folded along midrib; sheaths compressed and strongly keeled; ligule a
minutely fimbriate membrane. Racemes 2-4, 3-8 cm long, ascending. Spikelets oblong-elliptic, subacute,
margins silky pilose, ca. 2 mm long; lower glume absent; upper glume as long as spikelet, slightly
mucronate, 4-veined, midvein absent; lower lemma nearly as long as upper glume, margins silky pilose,
2-veined; upper floret ovate-obtuse, coriaceous, slightly shorter than spikelet; stigma purple; caryopsis
elliptic-oblong, compressed, dark-colored.
TAIPEI: Chyngtiangang, Liou 16799. TAINAN: Hsinhua, Hsu 1534.
Native to tropical America. Naturalized in Tatunshan, northern Taiwan, forming wide meadows.
midrib 中肋: (la)large:several vascular bundles
leaf surface 表面: (fla)flat surface
sclerenchyma 厚壁組織: (noscl)no except large vein
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 not well developed 泡狀細胞不發達: (smreg)epidermal cells gradually enlarge from vein to intervein
chlorenchyma cell number between two adjacent veins: 2
chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (out)large amount and in centrifugal site
mestome sheath 內束鞘細胞: (Xyms -)metaxylem pole adjacent with outer bundle sheath
distance between two adjancent vein 脈間距: 70 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