1	"Calluses hairy; lemmas awned, awns 8–15 mm long, twisted, divergent to slightly geniculate"	"Schizachne {Schizachne purpurascens}"
1	"Calluses glabrous; lemmas unawned or awned, awns to 12 mm long, straight"	2
2	"Inflorescences racemes; palea keels winged, the wings notched and awned"	Pleuropogon
2	"Inflorescences usually panicles, racemes in depauperate specimens; palea keels not winged or the wings entire and unawned"	3
3	"Lower glumes 1-veined, 0.3–4.5 mm long; disarticulation always above the glumes; lemmas not awned, never with hairs more than 1 mm long; culms never with cormous bases; distal florets in the spikelets sometimes reduced, not forming a morphologically distinct rudiment; plants of wet meadows and streamsides"	Glyceria
3	"Lower glumes 1–11-veined, 2–16 mm long; disarticulation above or below the glumes; lemmas sometimes awned, sometimes with hairs longer than 1 mm; culms sometimes with cormous bases; distal florets in the spikelets often forming a morphologically distinct rudiment; plants of drier or well drained habitats"	Melica