Perennials, with long stolons; culms compressed, nearly solid; ligule a ring of hairs. Inflorescence
of a pair of racemes, racemes slender, 6-12 cm long, rachis 0.8 mm wide, serrate; pedicels ca. 1 mm
long; spikelets in 2 rows. Spikelets 2-flowered, solitary, ovate, slightly acute, 1.5-1.8 mm long; lower
glume absent; upper glume and lower lemma similar, thin, margins of upper glume delicately fringed
with long silky hairs, hairs as long as spikelet; lower lemma flattened abaxially; upper lemma indurate,
ovate, margins inrolled, as long as spikelet, palea indurate, acute, margins inrolled. Caryopsis ca. 1.2
mm long, plano-convex, embryo 1/3 length of grain.
Originally from America, now widely naturalized in warm regions of the world. Taiwan, very common
in shady places.
ILAN: Chiaochi, Hsu 833. TAIPEI: Kankou, Hsu 640. TAOYUAN: Neili, Hsu TAICHUNG: Kukuan,
Hsu 669. NANTOU: Sun Moon Lake, Hsu 1349. CHIAYI: Chichou, Suzuki 4535. PINGTUNG: Kenting, Hsu 1098.
TAITUNG: Ansou, Hsu 1044. HUALIEN: Yuli, Yamamoto 3050.
midrib 中肋: (la)large:several vascular bundles
leaf surface 表面: (fla)flat surface
sclerenchyma 厚壁組織: (bAgir)on both sides of some veins as anchor-sahped 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 not well developed 泡狀細胞不發達: (irreg)epidermal cells irregular in size
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: 46 micrometer
length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 2