Phalaris canariensis L., Sp. Pl. 54. 1753. T. Koyama, Grass. Jap. Neighb. Reg. 225. 1987; Osada, Illust. Grass. Jap. 284, 1993.
Annual, glabrous.Culms loosely tufted, 30-120 cm tall, glabrous. Blades 10-30 cm long, 0.5-1.2 cm wide, glabrous. Sheath cylindrical, mostly shorter than the internode; ligule acute, 3-8 mm long. Panicle long ellipsoidal to conical, 1.5-6 cm long. Spikelets obovate, 3-flowered, extremely compressed, 6-9 mm long; glumes subequal, as long as the spikelet, 3-nerved,apex abruptly contracted, folded, keel sharp, broadly winged. Fetile lemma 5 mm long, pubescent; palea oblong, 2-nerved. Sterile lemma half as long as the fertile lemma.
NANTOU: en route from Kuankao to Patunkuan, C. I. Peng 8123.
An introduced grass from the western Mediterranean region.
midrib 中肋: (no)not conspicuous
leaf surface 表面: (mid)upper surface with middle 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: (palis)differentiate to palisade and sponge tissue
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
no small vein under buliform cells泡狀細胞下無小脈: (fanfu)bulliform set fan shaped, cells similar in size
chlorenchyma cell number between two adjacent veins: 7
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
chlorenchyma cell shape in LS 葉綠細胞縱面形狀: non -lobed