数据列表:
鸭嘴草属 : 植物 | eFloras | 来源:http://www.efloras.org/
鸭嘴草属 : 植物 | 中国植物物种信息 | 来源:http://www.plants.csdb.cn/
鸭嘴草属 : 植物 | 中国植物物种信息-云南植物志 | 来源:http://www.plants.csdb.cn/
鸭嘴草属 : 植物 | 中国种子植物 | 来源:中国种子植物光盘

Efloras
所属科:Poaceae
父拉丁名:POACEAE Tribe ANDROPOGONEAE
分类等级:种

Ischaemum

鸭嘴草属
Accepted Name
原始页面连接:www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=116533
出处:Flora of China
所在卷:FOC Vol. 22
205. Ischaemum Linnaeus, Sp. Pl. 2: 1049. 1753.

鸭嘴草属 ya zui cao shu

Authors:Xi-wen Li, Jie Li, Peter Stevens, Huaxing Qiu, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Bingtao Li, Hans-Joachim (Hajo) Esser, Huaxing Qiu, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Zhi Wei, Dezhao Chen, Prof. Dianxiang Zhang, Hang Sun, Les Pedley, Ren Sa, Delin Wu, Dezhao Chen, Prof. Dianxiang Zhang, Hang Sun, Puhua Huang, Michael G. Gilbert, Mats Thulin, C. Melanie Wilmot-Dear, Hiroyoshi Ohashi, Zhi Wei, Les Pedley, Delin Wu, Mats Thulin, Ren Sa, C. Melanie Wilmot-Dear, Langran Xu, Byoung-Hee Choi, Xiangyun Zhu, Stanley L. Welsh, Hiroyoshi Ohashi, Delin Wu, Mats Thulin, Bojian Bao, Anthony R. Brach, Ren Sa, Michael G. Gilbert, Xiangyun Zhu, Kai Larsen, Yingxin Liu, Chang Zhaoyang, Gennady P. Yakovlev, Ren Sa, Michael G. Gilbert, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Kai Larsen, Supee Saksuwan Larsen, Zhi Wei, Roger M. Polhill, Michael G. Gilbert, Langran Xu, Dietrich Podlech, Xiangyun Zhu, Stanley L. Welsh, Hiroyoshi Ohashi, Ren Sa, Michael G. Gilbert, Dezhao Chen, Prof. Dianxiang Zhang, Mats Thulin, Xi-wen Li, Jie Li, Henk van der Werff, Xi-wen Li, Jie Li, Henk van der Werff, Xi-wen Li, Jie Li, Henk van der Werff, Xi-wen Li, Jie Li, Henk van der Werff, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Stephan W. Gale, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Jin Xiaohua, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Paul Ormerod, Xinqi Chen, Yi-Bo Luo, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Paul Ormerod, Shou-liang Chen, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Nianhe Xia, Chris Stapleton, Sheng-lian Lu, Sylvia M. Phillips, De-Zhu Li, Chris Stapleton, Zhen-lan Wu, Paul M. Peterson, Shou-liang Chen, Sylvia M. Phillips, De-Zhu Li, Chris Stapleton, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Mingli Zhang, Christopher Grey-Wilson, Mingli Zhang, Christopher Grey-Wilson, Mingli Zhang, Christopher Grey-Wilson, Mingli Zhang, Magnus Lidén, Mingli Zhang, Magnus Lidén, Mingli Zhang, Christopher Grey-Wilson, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Stephen A. Renvoize, Shou-liang Chen, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Bi-xing Sun, Sylvia M. Phillips, Nianhe Xia, Liang-zhi Jia, Chris Stapleton, Zhen-lan Wu, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, De-Zhu Li, Chris Stapleton, De-Zhu Li, Chris Stapleton, Prof. Dianxiang Zhang, Thomas G. Hartley, Prof. Dianxiang Zhang, Thomas G. Hartley, Prof. Dianxiang Zhang, Thomas G. Hartley, Prof. Dianxiang Zhang, Thomas G. Hartley, Yinzheng Wang, Michael G. Gilbert, Hui Ren, Jun Wen, Liu Quanru, Michele Funston, Liu Quanru, Michele Funston, Jin-shuang Ma, Michele Funston, Cuizhi Gu, Ching-I Peng, Nicholas J. Turland, Ya Tang, Michael G. Gilbert, Laurence J. Dorr, Wei-liang Ma, Bruce Bartholomew, Tianlu Min, Anthony R. Brach, Shu-kun Chen, Sir Ghillean (Iain) T. Prance, Shugang Li, Michael G. Gilbert, Frank White, Shugang Li, Langran Xu, Dezhao Chen, Xiangyun Zhu, Puhua Huang, Zhi Wei, Ren Sa, Prof. Dianxiang Zhang, Bojian Bao, Delin Wu, Hang Sun, Gao Xinfen, Supee S. Larsen, Ivan Nielsen, Dieter Podlech, Yingxin Liu, Hiroyoshi Ohashi, Chang Zhaoyang, Kai Larsen, Jianqiang Li, Stanley L. Welsh, Michael A. Vincent, Mingli Zhang, Michael G. Gilbert, Les Pedley, Brian D. Schrire, Gennady P. Yakovlev, Mats Thulin, Ivan C. Nielsen, Byoung-Hee Choi, Nicholas J. Turland, Roger M. Polhill, Supee Saksuwan Larsen, Ding Hou, Yu Iokawa, C. Melanie Wilmot-Dear, Gregory Kenicer, Tomoyuki Nemoto, J. Michael Lock, Alfonso Delgado Salinas, Tatiana E. Kramina, Anthony R. Brach, Bruce Bartholomew, Dmitry D. Sokoloff, Shugang Li, Xi-wen Li, Jie Li, Puhua Huang, Fa-Nan Wei, Hongbin Cui, Henk van der Werff, Delin Wu, Helen Kennedy, Huaxing Qiu, Paul Hiepko, Hua Peng, Wm. Wayt Thomas, Bruce Bartholomew, Jenny Qiuyun Xiang, David E. Boufford, Liu Quanru, Lihua Zhou, Bingtao Li, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Bingtao Li, Stefan Dressler, Bingtao Li, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Bingtao Li, Hans-Joachim (Hajo) Esser, Huaxing Qiu, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Hang Sun, Bruce Bartholomew, Zhi Wei, Michael A. Vincent, Ren Sa, Michael G. Gilbert, Dezhao Chen, Prof. Dianxiang Zhang, Kai Larsen, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Dezhao Chen, Prof. Dianxiang Zhang, Mats Thulin, Dezhao Chen, Les Pedley, Puhua Huang, Hiroyoshi Ohashi, Prof. Dianxiang Zhang, Les Pedley, Jianqiang Li, Roger M. Polhill, Michael G. Gilbert, Bojian Bao, Nicholas J. Turland, Zhi Wei, Les Pedley, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Zhi Wei, Les Pedley, Langran Xu, Kai Larsen, Ren Sa, Michael G. Gilbert, Puhua Huang, Hiroyoshi Ohashi, Langran Xu, Byoung-Hee Choi, Zhi Wei, Les Pedley, Dezhao Chen, Prof. Dianxiang Zhang, Kai Larsen, Delin Wu, Ivan C. Nielsen, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Kai Larsen, Supee Saksuwan Larsen, Bojian Bao, Nicholas J. Turland, Gregory Kenicer, Puhua Huang, Hiroyoshi Ohashi, Puhua Huang, Hiroyoshi Ohashi, Tomoyuki Nemoto, Puhua Huang, Hiroyoshi Ohashi, Yu Iokawa, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Bojian Bao, Nicholas J. Turland, Bojian Bao, Kai Larsen, Ren Sa, Michael G. Gilbert, Ren Sa, Michael G. Gilbert, Ren Sa, Michael G. Gilbert, Ren Sa, Michael G. Gilbert, Hang Sun, Michael A. Vincent, Dezhao Chen, Les Pedley, Ren Sa, Michael G. Gilbert, Hang Sun, Bruce Bartholomew, Puhua Huang, Henk van der Werff, Puhua Huang, Hiroyoshi Ohashi, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Dudley Clayton, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Zhanhe Ji, Guanghua Zhu, Liu Zhongjian, Yi-Bo Luo, Jin Xiaohua, Jeffrey J. Wood, Phillip J. Cribb, Stephan W. Gale, Jaap J. Vermeulen, Paul Ormerod, Howard P. Wood, Dudley Clayton, Alexandra Bell, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Yi-Bo Luo, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Jiarui Chen, Peter C. Hoch, Peter H. Raven, Hua Peng, David J. Mabberley, Bi-xing Sun, Sylvia M. Phillips, De-Zhu Li, Chris Stapleton, Zheng-ping Wang, Chris Stapleton, Liang Liu, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Bi-xing Sun, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, De-Zhu Li, Chris Stapleton, Zhen-lan Wu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Liang Liu, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Liang Liu, Sylvia M. Phillips, Mingli Zhang, Magnus Lidén, Yinzheng Wang, David Hearn, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Paul M. Peterson, Shou-liang Chen, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Liang Liu, Nikolai N. Tzvelev, Shou-liang Chen, Sylvia M. Phillips, De-Zhu Li, Chris Stapleton, Zhen-lan Wu, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, Bi-xing Sun, Sylvia M. Phillips, Dezhao Chen, Prof. Dianxiang Zhang, Supee Saksuwan Larsen, Michael A. Vincent, Dezhao Chen, Les Pedley, Dequan Lu, Heidrun E. K. Hartmann, Shu-kun Chen, Haiying Ma, Yuxing Feng, Gabrielle Barriera, Pierre-André Loizeau, Zhengyi Wu, Zhe-Kun Zhou, Bruce Bartholomew, Dezhi Fu, Peter K. Endress, Haining Qin, Anthony R. Brach, Ruizheng Fang, Constance Lincoln, Delin Wu, W. John Kress, Bingtao Li, Thomas K. Wilson, Liu Quanru, Mark Watson, Tianlu Min, Bruce Bartholomew, Hua Peng, Michael G. Gilbert, De-Zhu Li, Cai Jie, Jun Wen, Prof. Zhiduan Chen, Hui Ren, Jun Wen, Bingtao Li, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Bingtao Li, Stefan Dressler, Huaxing Qiu, Michael G. Gilbert, Bingtao Li, Hans-Joachim (Hajo) Esser, Bingtao Li, Michael G. Gilbert, Zhi Wei, Michael G. Gilbert, Delin Wu, Mats Thulin, Bojian Bao, Nicholas J. Turland, Ren Sa, Michael G. Gilbert, Langran Xu, Mingli Zhang, Dietrich Podlech, Dezhao Chen, Prof. Dianxiang Zhang, Mats Thulin, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Puhua Huang, Hiroyoshi Ohashi, Bojian Bao, Michael A. Vincent, Delin Wu, Mats Thulin, Jianqiang Li, Hang Sun, Roger M. Polhill, Michael G. Gilbert, Hang Sun, Brian D. Schrire, Bojian Bao, Michael G. Gilbert, Zhi Wei, Michael G. Gilbert, Dezhao Chen, Prof. Dianxiang Zhang, Kai Larsen, Langran Xu, Xiangyun Zhu, Bojian Bao, Mingli Zhang, Hang Sun, Dietrich Podlech, Stanley L. Welsh, Hiroyoshi Ohashi, Kai Larsen, Anthony R. Brach, Puhua Huang, Hiroyoshi Ohashi, Dezhao Chen, Prof. Dianxiang Zhang, Kai Larsen, Hang Sun, Bruce Bartholomew, Xiangyun Zhu, Kai Larsen, Zhi Wei, Les Pedley, Dezhao Chen, Les Pedley, Zhi Wei, Les Pedley, Dezhao Chen, Prof. Dianxiang Zhang, Mats Thulin, Delin Wu, Mats Thulin, Ren Sa, Michael G. Gilbert, Delin Wu, Mats Thulin, Delin Wu, Mats Thulin, Delin Wu, Mats Thulin, Xi-wen Li, Jie Li, Henk van der Werff, Xi-wen Li, Jie Li, Henk van der Werff, Xi-wen Li, Jie Li, Henk van der Werff, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Phillip J. Cribb, Stephan W. Gale, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Yi-Bo Luo, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Jiarui Chen, Peter C. Hoch, Peter H. Raven, Zhen-lan Wu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Bi-xing Sun, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Stephen A. Renvoize, Shou-liang Chen, Sylvia M. Phillips, Liang Liu, Nikolai N. Tzvelev, Shou-liang Chen, Sylvia M. Phillips, Liang Liu, Guanghua Zhu, Klaus Ammann, Bi-xing Sun, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Mingli Zhang, Magnus Lidén, Mingli Zhang, Magnus Lidén, Mingli Zhang, Christopher Grey-Wilson, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, Guanghua Zhu, Liang Liu, Marina V. Olonova, Shou-liang Chen, Sylvia M. Phillips, Bi-xing Sun, Sylvia M. Phillips

Perennial, or sometimes annual. Culms often decumbent and much branched. Leaf blades linear to lanceolate, narrowed to ligule, sometimes pseudopetiolate; ligule membranous; sheath auricles often present. Inflorescence of paired racemes, or occasionally subdigitate, terminal and axillary, exserted or sometimes supported by a spatheole; racemes 1-sided, when paired often locked back to back and appearing as a single cylindrical raceme, spikelets of a pair similar or not; rachis internodes and pedicels stoutly linear to thickly clavate, U-shaped or triquetrous in cross section. Sessile spikelet dorsally compressed; callus truncate or obtuse, inserted into hollowed internode apex; lower glume papery to leathery, shallowly convex or almost flat, 2-keeled or rounded on flanks, sometimes winged, often rugose; upper glume boat-shaped, awnless or with straight awn from apex; lower floret male, well developed with palea; upper lemma usually deeply 2-lobed, awned from sinus, rarely awnless; awn geniculate, glabrous. Pedicelled spikelet as large as sessile or much smaller, upper lemma sometimes geniculately awned.

About 70 species: throughout the tropics but mainly in Asia, especially India; 12 species (one endemic) in China.


1 Margins of lower glume of sessile spikelet broadly rounded in lower part, narrowly inflexed and keeled above, not coarsely rugose or knobbly   (2)
+ Margins of lower glume of sessile spikelet narrowly and evenly inflexed and keeled along entire length, often coarsely rugose or knobbly   (8)
       
2 (1) Spikelets of a pair without obvious awns, or only sessile spikelet awned   (3)
+ Spikelets of a pair both clearly awned   (5)
       
3 (2) Inflorescence base enclosed in uppermost sheath; plant strongly rhizomatous.   1 I. muticum
+ Inflorescence long exserted from uppermost sheath; plant loosely tufted   (4)
       
4 (3) Racemes villous; sessile spikelet 8–10 mm.   2 I. anthephoroides
+ Racemes glabrous; sessile spikelet 5.5–8 mm.   3 I. aristatum
       
5 (2) Lower glume of sessile spikelet winged on keels, apex rounded, emarginate   (6)
+ Lower glume of sessile spikelet not winged on keels, apex sharply bicuspidate   (7)
       
6 (5) Racemes paired; rhizomes absent; culms less than 60 cm.   4 I. ciliare
+ Racemes (2–)3–6; rhizomes present; culms 60–100 cm.   5 I. polystachyum
       
7 (5) Spikelets ± glabrous; upper glume of sessile spikelet not winged on keel; callus hairs less than 1 mm.   6 I. timorense
+ Spikelets hispid; upper glume of sessile spikelet winged on keel; callus hairs ca. 2 mm.   7I I. thomsonianum
       
8 (1) Lower glume of sessile spikelet not transversely rugose or knobbly   (9)
+ Lower glume of sessile spikelet transversely rugose or knobbly on flanks   (10)
       
9 (8) Lower glume of sessile spikelet wingless, keels pilose; awn 1.8–2.5 cm.   8 I. aureum
+ Lower glume of sessile spikelet winged, glabrous; awn 1–1.2 cm.   9 I. setaceum
       
10 (8) Plant annual; lower glume of sessile spikelet coarsely rugose with 4–7 sharp transverse ridges across back.   10 I. rugosum
+ Plant perennial; lower glume of sessile spikelet with rounded knobs on keels in lower part, sometimes also with 2–4 weak ridges across back   (11)
       
11 (10) Culms up to 1 m tall; sessile spikelet 5–7 mm, awned, awn 1–1.5 mm.   11 I. barbatum
+ Culms 1–2 m tall; sessile spikelet 6.5–8 mm, awnless or awn less than 1 mm.   12 I. magnum

Authors: Bi-xing Sun & Sylvia M. Phillips