Perennials; rhizome stout, culm erect, node densely hirsute. Blade 30-75 cm long, to 35 mm wide;
sheath papillate-hirsute to glabrous; ligule 4-6 mm long. Panicle open, 20-35 cm long, axils pilose,
lower branches whorled. Spikelets 3-3.5 mm lng, obtuse, usually glabrous, faintly veined, mostly purplish
red or flushed with purple; glumes unequal; lower glume ca. 1/3 length of spikelet, 1-3-veined or
veinless; upper glume 5-veined; lower lemma usually staminate, rarely empty, 5-7-veined; upper lemma
distinctly transversely rugose, stramineous, coriaceous.
TAIPEI: Taipei, Hsu 393. MIAOLI: Shenghsing, Hsu 1369. TAICHUNG: Shinchuang, Yamamoto & Mori
8253. NANTOU: Puli, Hsu 1389. TAINAN: Hsinmatou, Mori 239.
Originally from tropical Africa, introduced elsewhere. Taiwan, in grassland, roadsides, riverbanks,
plantations and disturbed places.
midrib 中肋: (no)not conspicuous
leaf surface 表面: (sha)upper surface with shallow notch between the veins
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: (dko)two bundle sheaths the outer one with conspicuous chloroplast
buliform cells well developed 泡狀細胞發達: mainly appear in adaxial side
no small vein under buliform cells泡狀細胞下無小脈: (bcfan)bulliform cell with colorless cells extend beneath it
chlorenchyma cell number between two adjacent veins: 2
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 mestome sheath
distance between two adjancent vein 脈間距: 130 micrometer
length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 1