Setaria geniculata

莠狗尾草

Setaria geniculata P. Beauv.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

P. Beauv., Essai d'une Nouvelle Agrostographie 51. 1812. (Ess. Agrostogr.)

台灣首次記錄發表文獻

Ohwi, Acta phytotaxonomica et geobotanica eng 11: 53. 1942. (Acta Phytotax. Geobot.)

異名

Setaria lutescens (Weigel ex Stuntz) F. T. Hubb. var. flava Yamamoto

Yamamoto, Journal of the Society of Tropical Agriculture 11: 277. 1937. (J. Soc. Trop. Agr.)

各語言俗名

英

Knot-root bristle grass.
日

ふしねきんえのころ.

參考文獻

Chang-Yang, Su, Chiang & Hsieh, Taiwania 67(1): 1. 2022.
Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 158. 2010.
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Perennials with knotty rhizome; culm erect, base geniculate.
Sheath compressed and keeled; ligule a ring of haris.
Spikelets ca. 2.5 mm long; glumes membranaceous; lower glume acute, to 1/3 length of spikelet, 3-veined; upper glume obtuse, to 1/2 as long as spikelet, 5-veined; lower lemma membranaceous, as long as spikelet, 5-veined; palea flattened, 2-keeled, as long as lemma; upper lemma indurate, rugose, 5-veined, palea flattened abaxially, 2-keeled, nearly as long as lemma and spikelet; anthers up to1 mm long.
Caryopsis ca. 1.5 mm long, clasped by broad margins of palea.

分布

台灣 : in moist places.
世界 : Originally from tropical America, introduced into other countries.

引證標本

ILAN: Kuaishan, Kuoh 2471.TAIPEI: Shihmen, Hsu 1262. TAOYUAN: Neili, Hsu 1237. HSINCHU: Hsinchu, Huang 2112; Yuen Yang Lake, Hsu & Kuoh 14532. MIAOLI: Tahu, Cheng 78. TAICHUNG: Lishan, Kuoh 80122. NANTOU: Kuantaochi, Hsu 10659; Sun Moon Lake, Hsu 1314. TAINAN: Hsinhua, Hsu 326. PENGHU: Hongkuawy, Hsu 11553; Makung, Kuoh 1099. PINGTUNG: Ssuchungchi, Hsu 1111. TAITUNG: Lanyu Is., Hsu 1003; Tawu, Hsu 330. HUALIEN: Chilaishan, Sasaki s. n.