or perennials, culms sprawling, often rooting near the base. Leaf-blades linear to lanceolate, ligule a narrow
membrane. Inflorescence a lax raceme along a central axis, sometimes
panicle-like due to irregular secondary branching. Spikelets lanceolate to
oblong, glumes subequal, shorter than spikelet, upper glume and lower lemma
thickened and laterally compressed at apex and form a green crest; upper lemma
dorsally compressed, crustaceous, tip
with a little green crest; palea slightly protruding from lemma.