Phalaris

R. D. Meikle, Flora of Cyprus 2. 1985
but modified
1Perennial, robust grass, sometimes reaching a height of 1.5 m; culms bulbous at the base
1'Annual grasses, reaching a height of c. 1 m; culms not conspicuously bulbous at the base
2Spikelets of 2 kinds: the basal very much reduced, the upper in groups, with sterile spikelets surrounding a single fertile one
2'Spikelets all similar
3Wings of the glumes toothed or undulate; ligule 6-8 mm long
3'Wings of the glumes entire; ligule up to 5 mm long
4Empty lemmas at the base of the fertile floret oblong-acute, c. 3 mm long
4'Empty lemmas at the base of the fertile floret ovate-acute, c. 1 mm long