Annuals; culm tufted, 20-50 cm tall. Blade less than 12 cm long, 3-6 mm wide; sheath mostly
shorter than internode; ligule truncate, membranaceous, erose, brownish, 1-1.5 mm long. Racemes 3-9,
4-14 cm long, slender; rachis glabrous, flat, serrately winged, ca. 0.6 mm wide; pedicel terete to slightly
flattened, one ca. 2 mm long and other only 0.5 mm long. Spikelets paired, elliptic, minutely covered
with verrucose hairs, ca. 1.5 mm long; lower glume absent; upper glume more than 3/4 as long as spikelet,
3-veined, interveins white hairy; lower lemma as long as spikelet, veins distinct; upper lemma acute,
dark brown or blackish purple at maturity.
ILAN: Kueishan, Hsu 881. TAIPEI: Hsitzu, Hsu 95; Kankou, Hsu 649. TAOYUAN: Neili, Hsu 1234. MIAOLI:
Lungkang, Chuang 2587. TAICHUNG: Kukuan, Hsu 459; Nankanchi, Hsu 572. NANTOU: Chitou, Chuang
3164. CHIAYI: Alishan, Huang & Kao 1778. TAINAN: Peimen, Morimoto 670. PINGTUNG: Pingtung, Hsu 745.
TAITUNG: Ansou, Hsu 1068.
Tropical regions of both hemispheres. Taiwan, weedy in sunny places.
midrib 中肋: (sm)small:with one vascular bundle
leaf surface 表面: (fla)flat surface
sclerenchyma 厚壁組織: (ecstr)strand enclosed by colorless cells and epidermis
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: mainly appear in adaxial side
with small vein under buliform cells泡狀細胞下有小脈: (fansh)bulliform set shell-shaped or fan -shaped
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: 85 micrometer
length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 2
chlorenchyma cell shape in LS 葉綠細胞縱面形狀: non -lobed