生活型

herb

形態特徵

• Herbs perennial, rhizomatous. Culms ascending, to 40 cm tall. Nodes articulate, internodes keeled, glabrous.
• Leaf sheaths longer or shorter than internodes, glabrous, strongly compressed with a keel, connected with keel of abaxial blade surface; ligule 1.5-2 cm long, membranous, apex truncate to retuse; blade linear, ca. 5 cm long.
• Inflorescence a panicle, spreading, with ca. 6 nodes, 5-10 cm long; lowest branches 3-5 cm long. Lower glume lanceolate, ca. 2.5 mm long, 3-veined. Upper glume lanceolate to ovate, ca. 3 mm long, 3-veined. Callus with webbed hairs. Lemma ovate, boated, ca. 3 mm long, 5-veined, central and marginal veins from base to middle part pubescent, lateral veins glabrous, apical margin usually purplish. Palea ovate, ca. 2.5 mm long, apex acute, with 2 hispid keels. Lodicules 2, ca. 0.75 mm long, membranous, apex bifid.
• Anthers 3, ca. 1.5 mm long.

分布

• 世界 : native in Europe and Russia, and naturalized in North America (Villasefior and Espinosa-Garcia, 2004) and eastern Asia.

引證標本

Nantou Hsien: Shin-yi Hsiang, Lu-lin Shan, Jul. 22 2000, Kuoh C.-S (NCKU), Ta-ta-chia, Aug. 2 2005, Jung M.-J. x080201 (NCKU), x080202 (NCKU), Oct. 10 2005, Jung M.-J. x101001 (NCKU), Oct. 11 2005, Jung M.-J. x101103 (NCKU).

引用文獻

• Ming-Jer Jung, Robert J. Soreng, and Chang-Sheng Kuoh, Taiwania 51(3): 240-248. 2006.