Annual or perennial, sometimes dwarf shrubs, rhizomatous or stoloniferous, sometimes with a bulb or corm, tufted or decumbent
Leaf blade linear to linear-lanceolate, expanded, folded or rolled, rarely much reduced; ligule a fringed or unfringed membrane, or a fringe of hairs
Inflorescence a panicle or reduced to a raceme with a few spikelets, or to a single spikelet, open or contracted, sometimes spike-like, rarely secund; spikelets solitary or sometimes clustered, pedicelled
Spikelet laterally to not noticeably compressed, disarticulating above glumes; glumes ± equal to unequal, shorter to longer than spikelet, membranous, similar, lanceolate or ovate-lanceolate, hairy or glabrous, 5-nerved, sometimes shortly mucronate, awnless
Florets 3; lower 2 florets sterile, reduced to lemmas, usually of similar size and differing from smaller bisexual lemma, occasionally first sterile lemma short and glume-like and second sterile lemma resembling bisexual lemma; sterile lemmas stiffly membranous, usually scabrid, one or both transversely rugose, tuberculate or smooth, hairy or glabrous, awnless or mucronate or awned from back or tapering into awn; awn longer or shorter than lemma body, sometimes bases of second sterile lemma and bisexual lemma coming together in a hinge-like joint resembling an earlobe, which may have a membranous appendage; uppermost floret bisexual; lemma firmer than glumes, smaller and more laterally compressed than sterile lemmas, 5-7-nerved, usually glabrous, rarely long-villous, sometimes mucronate, awnless; callus 0; palea linear or boat-shaped, almost as long as lemma, keeled, finely 2-nerved
Lodicules 2, large and flat, usually ovate or 2-lobed
Stamens 6 (5, 4, 3 or 1)
Ovary obovoid; styles free, plumose or brush-like above
Caryopsis ellipsoid
x = 12 (polyploidy)
Nomenclature:
Ehrharta Thunb.
Thunberg: 217 (1779) name conserved
Stapf: 660 (1900)
Stent: 275 (1924)
Chippindall: 34 (1955)
Clayton: 38 (1970)
Launert: 39 (1971)
Clayton & Renvoize: 76 (1986)
Gibbs Russell: 67 (1987)
Gibbs Russell & Ellis: 51 (1987)
Gibbs Russell et al.: 121 (1990)
Watson & Dallwitz: 361 (1994)
Distribution & Notes:
Global: Species ± 35, southern Africa to Ethiopia, Indonesia to New Zealand
Southern Africa: Species 22, mainly southern and western areas of the Cape region, a few widespread
References:
CHIPPINDALL, L.K.A. 1955. A guide to the identification of grasses in South Africa. In D. Meredith, The grasses and pastures of South Africa. Central News Agency, Cape Town
CLAYTON, W.D. 1970. Flora of tropical East Africa. Gramineae (Part 1)
CLAYTON, W.D. & RENVOIZE S.A. 1986. Genera graminum. Grasses of the world. Kew Bulletin. Additional series 13
GIBBS RUSSELL, G.E. 1987. Taxonomy of the genus Ehrharta (Poaceae) in southern Africa. Bothalia 17
GIBBS RUSSELL, G.E. & ELLIS, R.P. 1987. Species groups in the genus Ehrharta (Poaceae) in southern Africa. Bothalia 17
GIBBS RUSSELL, G.E., WATSON, L., KOEKEMOER, M., SMOOK, L., BARKER, N.P., ANDERSON, H.M. & DALLWITZ. M.J. 1990. Grasses of southern Africa. Memoirs of the Botanical Survey of South Africa No. 58
LAUNERT, E. 1971. Gramineae. Flora zambesiaca 10, 1
STAPF, O. 1898-1900. Gramineae. Flora capensis 7
STENT, S.M. 1924. South African Gramineae. Grasses of the Transvaal as represented in the National Herbarium. Bothalia 1
WATSON, L. & DALLWITZ, M.J. 1994. The grass genera of the world, revised edn. CAB International, Oxon
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