Cyperus tenuiculmis
四稜穗莎草
Cyperus tenuiculmis Bock.
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
Bock., Linnaea : ein Journal für die Botanik in ihrem ganzen Umfange 30: 286. 1870. (Linnaea)
台灣首次記錄發表文獻
Koyama, Quarterly journal of the Taiwan Museum 14: 169. 1961. (Quart. J. Taiwan Mus.)
異名
-
Cyperus zollingeri auct. non Steud.
各語言俗名
-
日ぞうりがやつり.
參考文獻
-
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)
特徵描述
生活型
herb
形態特徵
- Not tufted; rhizome corm-like, woody, clothed with dark brown scales and their fibrous remnants. Culms erect, 35-70 cm tall, slender, acutely triquetrous, smooth, leaved at base.
- Leaves few, much shorter than culm; blades narrowly linear, 2-6 mm wide, folded, occasionally with slightly recurved margins; sheaths light brown.
- Corymbs as a rule simple, sometimes in part subcompound, with 2-7 slender unequal patent rays 1-10 cm long; spikes ovoidal, subloosely bearing 4-14 spikelets; leafy bracts 2-4, lowest 1.5-2 times as long as corymb, second slightly shorter than to nearly equalling corymb, remainder setaceous. Spikelets linear, 1-2.5 cm long, 1.5-2 mm wide, nearly quadrangulous, subloosely 6-14-flowered, straw-colored, rachilla flexuose, narrowly winged, turning dark brown.
- Glumes suberect, elliptic, boat shaped, 3.7-4 mm long, obtuse at apex, thinly chartaceous, straw colored to straw-brown, 7- or -9-nerved, keel convexed. Achenes elliptic or obovate, triquetrous with concave sides, ca. 1/2 as long as glume, maturing blackish, minutely puncticulate; stigmas 3. Stamens 3.
分布
- 台灣 : Open wet grasslands on low hills; rare in Taiwan.
- 世界 : Africa, India, Indochina, Malesia, northern Australia, southern China.
引證標本
TAITUNG: Lanyu Is., Kuoh 4874*; Hokanshan, Hayata s. n. (TI). KAOHSIUNG: Liukuei, Okamoto s. n.
參考文獻
典藏標本
共有 6 份典藏標本
P65351
郭長生 C.S.Kuoh
台東 Taitung
郭長生 C.S.Kuoh
台東 Taitung
158182
郭長生 C.S.Kuoh
台東 Taitung
郭長生 C.S.Kuoh
台東 Taitung
150292
郭長生 Chang-Sheng Kuoh
台東 Taitung
郭長生 Chang-Sheng Kuoh
台東 Taitung
183146
許建昌 Chien-Chang Hsu, 郭長生 C.S.Kuoh
南投 Nantou
許建昌 Chien-Chang Hsu, 郭長生 C.S.Kuoh
南投 Nantou
024357
山本由松 Y.Yamamoto, 森邦彥 K.Mori
台中 Taichung
山本由松 Y.Yamamoto, 森邦彥 K.Mori
台中 Taichung
164811
高雄 Kaohsiung
高雄 Kaohsiung