Isachne arisanensis Hayata, Icon. Pl. Form. 7: 57. 1918; Honda, Monogr. 278. 1930.
Isachne stricta Elmer, Leafl. Philip. Bot. 2: 463. 1908; Chase in Journ. Arnold Arb. 24: 88. 1943.
Isachne elatiuscula Ohwi in Bot. Mag. Tokyo 56: 5. 1942.
Culm slender, 30-90 cm long. Blade firm, narrowly lanceolate, 7-15 cm long by 4-9 mm wide, revolute when dry; sheath loose, shorter than the internode, ciliate on the margins; ligule a row of hairs, about 2 mm long, Panicle 10-20 cm long, pyramidal, branches smooth, spreading when mature. Spikelets 1-1.2 mm long, subglobose; glumes equal, 7-9-nerved, equaling the spikelet or slightly, shorter, glabrous, more or less hispid toward the apex. Florets monomorphic, globose to elliptical-ovate, obtuse, glabrous or puberulent, rachilla short, terete.
TAIPEI: Taipei, Chang 3903. ILAN: Tayuanshan, Kuo 159. TAlCHUNG: Pahsienshan, Hsu 447. NANTOU: Chushan, Hsu 88. CHIAYI: Mt. Alishan, Kao 3337. TAITUNG: Chihpenyue, Suzuki 10906. HUALlEN: Mukuashan, Nakamura 4396.
Widely distributed in Southeast Asia.
Locally grows at medium altitudes along forest margins.
This is a very common and abundant grass.
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: (isach)cells elongate and radiate upward like crab legs
bundle sheath 維管束鞘: (nke)bundle sheaths without 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: (not)no chloroplast
mestome sheath 內束鞘細胞: (Xyms+)metaxylem pole adjacent with mestome sheath
distance between two adjancent vein 脈間距: 250 micrometer
length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 5
chlorenchyma cell shape in LS 葉綠細胞縱面形狀: non -lobed