Deschampsia caespitosa (L.) Beauv. subsp. orientalis Hult., Kungl. Vet.-Akad. Handl. 5: 109. 1927; Koyama, Grass. Jap. Neighb. Reg.152. 1987.
Culms tufted, more than 40 cm tall, slender. Blades flat or folded; ligule tongue-shaped, 3.5 mm long. Panicle lax, straw-colored, 10 cm long. Spikelets 2-several-flowered, 5 mm long; glumes chartaceous; the lower 5 mm long, 3-nerved, acute; the upper 4 mm long, 1-nerved, acute. Floret 3.5 mm long, basal part covered with short silky hairs, the hairs 1/2-1.3 the length of the lemma; lemma truncate and tooted at the apex, as long as the floret, a short and straight awn arising from the lower part; palea obovate-lanceolate, 2-keeled on back. Anther 1.2 mm long.
ILAN: Nanhutashan, Hsu 6021. HSINCHU: Tapachienshan, Kuoh 3791. TAICHUNG: Hsuehshan, Shimada 2604F. NANTOU: Hohuanshan, Hsu & Kuoh 111145. CHIAHYI: Paiyunshanchuag, Hsu 1107. KAOHSIUNG: Kuanshan, Fukuyama s. n. July 12, 1935.
This variety distributed in Japan, eastern Siberia and Kamchatka.
midrib 中肋: (no)not conspicuous
leaf surface 表面: (dee)upper surface with deep 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: (homog)homogenous sponge tissue
bundle sheath 維管束鞘: (nke)bundle sheaths without chloroplast
buliform cells not well developed 泡狀細胞不發達: (nobul)if present only along side of midrib
chlorenchyma cell number between two adjacent veins: 8
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