Elymus
Plants perennial, tufted or rhiozmatous. Culms usually erect. auricles sometimes present at apex of leaf sheath; leaf blade flat or inrolled. Inflorescence an erect to nodding spike. Spikelets 1 or 2 (rarely more) per node, sessile, appressed to rachis, laterally compressed, with 2–10 or more florets, falling intact or above glumes; rachis tough, not disarticulating. Glumes opposite or side-by-side, firmly membranous to leathery, 1–9(–11)-nerved, not keeled, apex obtuse to shortly awned. Lemma lanceolate-oblong, dorsally rounded, 5-veined, ±pubescent, apex obtuse or acute to awned, rarely toothed. Palea shorter than or equal to lemma. Callus glabrous.
Walsh, N.G. (1994). Poaceae. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons, pp. 356–627. Inkata Press, Melbourne.
SpinningSynonyms
Soreng, R.; Peterson, P.M.; Romeschenko, K; Davidse, G. et al. (2015). A worldwide phylogenetic classification of the Poaceae (Gramineae). Journal of Sytsematics and Evolution 53(2): 117–137.
