Panicum alopecuroideum L., Sp. Pl. ed. 2. 82. 1762.
Perennials; clum compressed, stout, tufted, 50-100 cm tall. Blade coriaceous, 30-60 cm long, 5-8
mm wide, often involute farinose; sheath glabrous, marging ciliate; ligule a ring of hairs, ca. 0.5 mm
long. Panicle spike-like, cylindrical, 10-15 cm long, main axis hairy; sterile branches forming bristles
and subtending spikelet, these falling off with spikelet; pedicel 2-3mm long. Spikelets ca. 7 mm long,
lanceolate or broadly lanceolate, acute; glumes more or less hardened; lower glume minute; upper
glume 1/2 as long as spikelet, narrowly oblong, acute; lower lemma and upper lemma equal in length,
acute, broadly lanceolate; upper lemma hyaline.
TAIPEI: Yangmingshan, Kuoh 2285. MIAOLI: Shenghsin, Hsu 1351. TAICHUNG: Taichung, Suzuki s. n.
NANTOU: Chingshuikou, Huang 275. CHIAYI: Houtapu, Sasaki s. n.
Myanmar, Malesia, Australia, Polynesia, China and Japan. Taiwan, common on sunny hillsides,
raodsides and rice fields.
midrib 中肋: (la)large:several vascular bundles
leaf surface 表面: (mix)mixed type with variable surface nodules
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: 4
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: 78 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: lobed
