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KEY TO YUSHANIA SPECIES

 

Rhizome necks hollow, one leaf margin thickened:-

   leaf sheath auricles small; oral setae spreading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . microphylla
   leaf sheath auricles absent; oral setae erect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . yadongensis

Rhizome necks solid; leaf edges similar, both thin:-

   new culm sheath mainly glabrous but base with prominent ring of hairs

       culm sheath auricles large & persistent with widely spreading bristles . . . . . . . . . . . punatsangensis
       culm sheath auricles small or absent with a few erect bristles . . . . . . . . . . . . . . . . . . . . . . . . pantlingii

   new culm sheath partially or completely setose

      new culm sheath base with dense fringe of hairs on margin and around base . . . . . . . . . . . fimbriata
      new culm sheath base with few hairs or none at all;
           culm sheath base glabrous, culm internode densely scabrous . . . . . . . . . . . . . . . . . . . . . . . . maling
           culm sheath base hairy, culm internode not scabrous . . . . . . . . . . . . . . . . . . . . . . . . . . . . sagittifera

 

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