Poeae
Annuals or perennials. Leaf-sheath usually free, sometimes connate. Ligule membranous. Leaf-blade linear, filiform or setaceous, flat, plicate or convolute. Inflorescence a panicle, rarely a spike or raceme; florets all ⚥, or some ⚥ and others Ø, or unisexual in dioecious, gynomonoecious or gynodioecious spp. (Poa). Spikelets (1)-2-many-flowered, laterally compressed or terete; disarticulation above glumes and usually between florets. Glumes < spikelets, usually membranous. Lemma membranous to coriaceous, (3)-5-7-(13)-nerved, awnless or with a terminal awn, usually keeled. Palea 2-keeled. Lodicules 2, lanceolate-acute, entire or lobed. Stamens 3, rarely 2 or 1. Ovary glabrous or sometimes hairy at apex; styles 2. Caryopsis usually ellipsoid; hilum linear or punctiform.
