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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