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Taiwan Gramineae | Family List | Poaceae | Panicum

Panicum repens L., Sp. Pl. ed. 2. 87. 1762; Hsu, Fl. Taiwan 5: 577. 1978.


Perennials; culm erect or decumbent, 20-50 cm tall, nodes brownish black. Blade 8-20 cm long. Sheath glabrous. Ligule membranaceous, truncate, ca. 1 mm long, fringed with haris, Panicle open, 5-15cm long, terminal and axillary. Spikelets glabrous, acute at length of spikelet. Upper glume and lower lemma equal, strongly 9-11-veined. Lower palea membranaceous, nearly as long as spikelet. Upper lemma smooth, shiny, brown at maturity, coriaceous.

TAIPEI: Chinshan, Hsu 1295; Shihmen, Hsu 1266. TAOYUAN: Neili, Hsu 1225. NANTOU: Chingshukou, Huang 277. YULIN: Huwei, Hsu 681. PINGTUNG: Ssuchungchi, Hsu 1106. TAITUNG: Ansou, Hsu 1062; Chihpen, Hsu 990.

Pantropic. Taiwan, common in sunny to slightly shaded, moist places.

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: (radia)cells radiate and lesser than
bundle sheath cell in width

bundle sheath 維管束鞘: (dko)two bundle sheaths the outer one
with conspicuous chloroplast

buliform cells well developed 泡狀細胞發達: mainly appear in adaxial side

no small vein under buliform cells泡狀細胞下無小脈: (bcfan)bulliform cell with colorless cells
extend beneath it

chlorenchyma cell number between two adjacent veins: 2

chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (per)large amount and in peripheral site

mestome sheath 內束鞘細胞: (Xyms+)metaxylem pole adjacent with
mestome sheath

distance between two adjancent vein 脈間距: 135 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 1


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