Ischaemum muticum
無芒鴨嘴草
Ischaemum muticum L.
名彙資訊
特徵描述
典藏標本
數位照片
分布位置
相關資訊
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名彙資訊
學名發表文獻
L., Species Plantarum 2: 1049. 1753. (Sp. Pl.)
台灣首次記錄發表文獻
Ohwi, Acta phytotaxonomica et geobotanica eng 11: 172. 1942. (Acta Phytotax. Geobot., 植物分類,地理)
異名
無
各語言俗名
-
英Awnless duck beak.
-
日おにぢば.
參考資料
-
Ming-Jer Jung, Quarterly Journal of Forest Research 41(4): 307-314. 2019. (Quart. J. Forest. Res., 林業硏究季刊)
-
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)
特徵描述
生活型
herb
形態特徵
- Culms geniculate, ca. 2.5 mm in diam., conspicuously noded.
- Blade brownish red, 7-8 cm long, 1 cm wide, petiolate, hirsute on both surfaces; ligule truncate, ca. 0.3 mm long; sheath hirsute.
- Racemes 2, not exceeding uppermost sheath, ca. 2.5 cm long. Spikelets paired, more or less similar, upper pedicellate, lower sessile, lanceolate, ca. 7 mm long; rachis swollen and winged. Lower glume coriaceous, broadly lanceolate, as long as spikelet, 2-keeled and winged on upper part, inconspicuously numerousnerved and tessellate nerved; upper glume coriaceous, broadly lanceolate and boat shaped, 1-keeled and winged on upper back, pointed, margins membranaceous and fimbriate. Lower floret subcoriaceous, ca. 6 mm long; lemma lanceolate, margins slightly inrolled, fimbriate; palea lanceolate, 2-keeled, margins membranaceous, fimbriate. Upper floret membranaceous, brownish red; lemma boat shaped, with 2 conspicuous lateral nerves, shortly aristate, upper margins fimbriate; palea linear-lanceolate, 2-keeled, fimbriate along margins, anthers ca. 2.3 mm long.
分布
- 台灣 : littoral areas.
- 世界 : The Ryukyus, Indo-Malaysia and northern Australia.
引證標本
PINGTUNG: Kentin, Hsu et a1. 13611A.
引用文獻
典藏標本
共有 6 份典藏標本
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247392
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細川隆英 T.Hosokawa
Micronesia
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