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Poaceae Tribe Arundineae  
 
 
 
 
Perennials or rarely annuals, sometimes tall weeds or tussock grasses. Leaf-blades narrowly linear or setaceous, occasionally flat; ligule a short scarious membrane or a line of hairs. Inflorescence an open or contracted panicle, sometimes large and plumose. Spikelets bisexual or the uppermost reduced, rarely unisexual and dioecious, laterally compressed, 2-10-flowered; rhachilla disarticulating beneath each floret, often produced and crowned with a rudimentary floret, sometimes long-villous; glumes persistent, hyaline to scarious or subherbaceous; lemmas membranous to coriaceous, 1-many-nerved, ± hairy or occasionally long-villous, entire or 2-lobed, awnless or awned from the tip or sinus, the lobes also often aristate; awn geniculate with a twisted column, sometimes straight; palea hyaline, shorter than or nearly as long as the lemma; lodicules 2-3; stamens 2-3, often minute; stigmas 2. Grain with medium-sized embryo and linear hilum; starch grains com¬pound. Chromosomes small, basic number 6, 9 or 12. 
Genera ± 35; cosmopolitan; 6 genera and 10 species in Pakistan. 
 
 
 
Arundineae were originally conceived as a tribe of tall grasses with large plumose panicles. However, it is by no means a homogeneous tribe and, with the shift in emphasis from spikelet morphology to cryptic characters as tribal criteria, its distinction from Danthonieae is no longer tenable. 
 
 
 
 
                         
		
                          
                          
			
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  | 1 | Tall reed-like grasses with large plumose panicles |  | (2) |  
  | + | Slender grasses without large plumose panicles |  | (4) |  
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  | 2 (1) | Ligule membranous |  | Arundo |  
  | + | Ligule a line of hairs |  | (3) |  
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  | 3 (2) | Lowest panicle branches with a silky beard at the base |  | Phragmites |  
  | + | Lowest panicle branches without a silky beard at the base………..........................................................................see |  | Neyraudia |  
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  | 4 (1) | Lemmas notched or shallowly 2-lobed, awnless or with a minute awn in the sinus |  | Schismus |  
  | + | Lemmas deeply 2-lobed; awn perfect |  | (5) |  
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  | 5 (4) | Ligule a line of hairs |  | (6) |  
  | + | Ligule a conspicuous membrane |  | Duthiea |  
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  | 6 (5) | Glumes prominently 7-11-nerved, chartaceous, scabrid; lemmas densely short-hairy between the nerves |  | Asthenatherum |  
  | + | Glumes not prominently nerved, rather thin; lemmas not short-hairy between the nerves |  | Danthonia |  |  
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Lower Taxa
 
 
Related Synonym(s):
 
   
	 
                      
                         
		
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