数据列表:
鼠尾粟属 : 植物 | eFloras | 来源:http://www.efloras.org/
鼠尾粟属 : 植物 | 中国植物物种信息 | 来源:http://www.plants.csdb.cn/
鼠尾粟属 : 植物 | 中国植物物种信息-云南植物志 | 来源:http://www.plants.csdb.cn/
鼠尾粟属 : 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 ERAGROSTIDEAE
分类等级:种

Sporobolus

鼠尾粟属
Accepted Name
原始页面连接:www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=131091
出处:Flora of China
所在卷:FOC Vol. 22
138. Sporobolus R. Brown, Prodr. 169. 1810.

鼠尾粟属 shu wei su 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, Shou-liang Chen, Stephen A. Renvoize, Bi-xing Sun, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Sheng-lian Lu, Sylvia M. Phillips, Nianhe Xia, Liang-zhi Jia, De-Zhu Li, Chris Stapleton, Nianhe Xia, Chris Stapleton, De-Zhu Li, Chris Stapleton, Shou-liang Chen, Sylvia M. Phillips, Bi-xing Sun, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips, Prof. Dianxiang Zhang, Thomas G. Hartley, Prof. Dianxiang Zhang, Thomas G. Hartley, Prof. Zhiduan Chen, Jun Wen, Hua Peng, Michele Funston, Bojian Bao, Thomas Borsch, Steven E. Clemants, Mingli Zhang, Gordon C. Tucker, Yinzheng Wang, Nicholas J. Turland, Jie Chen, Nicholas J. Turland, Xi-wen Li, Jie Li, Peter S. Ashton, Liguo Fu, Nan Li, Robert R. Mill, Hua Peng, Richard A. Howard, Dezhi Fu, John H. Wiersema, Haining Qin, Chamlong Phengklai, Ruizheng Fang, Dieter H. Wilkins, Huaxing Qiu, Peter H. Weston, Guofang Wu, Kai Larsen, Xi-wen Li, Jie Li, Peter Stevens, Xi-wen Li, Norman K. B. Robson, Huaxing Qiu, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Huaxing Qiu, Michael G. Gilbert, Bingtao Li, Michael G. Gilbert, Ren Sa, Michael G. Gilbert, Bojian Bao, Kai Larsen, Gao Xinfen, Brian D. Schrire, Puhua Huang, Hiroyoshi Ohashi, Dezhao Chen, Prof. Dianxiang Zhang, Ding Hou, Hang Sun, Les Pedley, Delin Wu, Mats Thulin, Hang Sun, Mats Thulin, Dezhao Chen, Prof. Dianxiang Zhang, Kai Larsen, Dezhao Chen, Prof. Dianxiang Zhang, Kai Larsen, Supee Saksuwan Larsen, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Zhi Wei, Les Pedley, Hang Sun, Mats Thulin, Ren Sa, Michael G. Gilbert, Puhua Huang, Hiroyoshi Ohashi, Yu Iokawa, Puhua Huang, Hiroyoshi Ohashi, Langran Xu, Byoung-Hee Choi, Zhi Wei, Les Pedley, Dezhao Chen, Les Pedley, Delin Wu, Mats Thulin, Dezhao Chen, Prof. Dianxiang Zhang, Mats Thulin, Puhua Huang, Jie Li, Xi-wen Li, Henk van der Werff, Fa-Nan Wei, Henk van der Werff, Xi-wen Li, Jie Li, Henk van der Werff, Fa-Nan Wei, Henk van der Werff, Haining Qin, Shirley A. Graham, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Phillip J. Cribb, Xinqi Chen, Phillip J. Cribb, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Xinqi Chen, Phillip J. Cribb, Stephan W. Gale, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Jaap J. Vermeulen, Xinqi Chen, Jeffrey J. Wood, Xinqi Chen, Stephan W. Gale, Phillip J. Cribb, Hua Peng, Caroline M. Pannell, Hua Peng, David J. Mabberley, Hua Peng, David J. Mabberley, Xinqi Chen, Jeffrey J. Wood, Zhen-lan Wu, Sylvia M. Phillips, Zheng-de Zhu, Yang Guangyao, Chris Stapleton, De-Zhu Li, Chris Stapleton, Shou-liang Chen, Paul M. Peterson, Zhen-lan Wu, 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, Shou-liang Chen, Sylvia M. Phillips, Zheng-ping Wang, Chris Stapleton, Zhen-lan Wu, Sylvia M. Phillips, Zheng-de Zhu, Chris Stapleton, Guanghua Zhu, Liang Liu, Robert J. Soreng, Marina V. Olonova, Zhen-lan Wu, Shou-liang Chen, Sylvia M. Phillips, Shou-liang Chen, Zhen-lan Wu, Sheng-lian Lu, Bi-xing Sun, Sylvia M. Phillips, Paul M. Peterson, Shou-liang Chen, Sylvia M. Phillips, Zhen-lan Wu, Sylvia M. Phillips

Annuals or perennials, tufted or sometimes with creeping rhizomes or stolons. Leaf blades flat or rolled, linear to narrowly lanceolate; ligule a line of hairs. Inflorescence an open or contracted panicle, rarely spikelike. Spikelets with 1 floret, subterete, not compressed or keeled, glabrous; rachilla disarticulating above glumes; glumes usually shorter than lemma, unequal, membranous, deciduous or persistent, 1-veined or veinless, apex obtuse, acute or acuminate; lemma elliptic to narrowly ovate, thinly membranous, 1–3-veined, glabrous, rounded on back, awnless; palea equaling or shorter than lemma, depressed between veins and often splitting lengthways as grain grows. Stamens 2–3. Grain globose to ellipsoid, rounded or truncate, pericarp free, commonly swelling when wet and expelling the grain, which often adheres to spikelet apex. x = 9, 12.

About 160 species: tropics and subtropics, extending into warm-temperate regions; eight species (one introduced) in China.

Most species of this genus in China are fodder plants. The culms are used for weaving.

A specimen (H. Y. Liang 64044, US) collected from sandy soil near the seashore of Hainan appears to be Sporobolus gloeoclados Cope (Kew Bull. 47: 656. 1992), from SW Asia, and is presumably an introduction.


1 Annual   (2)
+ Perennial   (4)
       
2 (1) Panicle linear, spikelike; lower margins of leaf blades pectinate with long tubercle-based bristles.   1 S. pilifer
+ Panicle ovate, open; lower margins of leaf blades not pectinate   (3)
       
3 (2) Panicle branches whorled; spikelets 1–1.4 mm.   2 S. coromandelianus
+ Panicle branches not whorled; spikelets 0.8–1 mm.   3 S. tenuissimus
       
4 (1) Lower glume 2/3–4/5 spikelet length; upper glume as long as the spikelet; leaf blades involute to acicular, 3–11 cm   (5)
+ Lower glume less than 1/2 spikelet length; upper glume 1/2–2/3 spikelet length; leaf blades linear, 15–50 cm   (6)
       
5 (4) Plant with long tough rhizomes; leaf blades stiff, pungent; panicle gray-green, dense, branches appressed.   4 S. virginicus
+ Plant tufted; leaf blades linear-acicular; panicle purplish, slightly lax, branches slightly spreading.   5 S. hancei
       
6 (4) Lowermost panicle branches whorled, glandular.   S. gloeoclados (see note above)
+ Lowermost panicle branches not whorled   (7)
       
7 (6) Panicle linear, dense, branches often appressed.   6 S. fertilis
+ Panicle effuse or laxly contracted, branches spreading   (8)
       
8 (7) Panicle contracted, up to 5 cm wide, spikelets crowded; stamens usually 2.   7 S. diandrus
+ Panicle up to 20 cm wide, spikelets scattered; stamens 3.   8 S. wallichii

Authors: Zhen-lan Wu & Sylvia M. Phillips