Leaf blade
linear, folded or rolled; ligule a fringed membrane or a fringe of hairs
Inflorescence
terminal, with a single cylindrical raceme; spikelets apparently borne singly since pedicels fused to rachis and indistinguishable from internode; internodes semicylindrical and strongly oblique top and bottom; spikelets sunken, sessile
Sessile spikelet
dorsiventrally compressed, falling with glumes and adjacent joint; glumes ± equal, rounded on back, awnless, dissimilar; lower glume lanceolate, obtuse, smooth, rounded on flanks, wingless; upper glume apically notched or entire
Florets
2, lower floret sterile, reduced to hyaline lemma, awnless, palea 0; upper floret bisexual, lemma less firm in texture than glumes, 2-nerved, entire, awnless; callus obtuse; palea small or suppressed
Pedicelled spikelet
and pedicel suppressed or fused and indistinguishable from internode
Nomenclature:
Oxyrhachis
Pilg.
Pilger: 655 (1932)
Clayton & Renvoize: 855 (1982)
Clayton & Renvoize: 368 (1986)
Gibbs Russell et al.: 231 (1990)
Watson & Dallwitz: 681 (1994)
Distribution & Notes:
Global
: Species 1:
Oxyrhachis gracillima
(Baker) C.E.Hubb., Africa and Madagascar
Southern Africa
: S KwaZulu-Natal and Eastern Cape
References:
CLAYTON, W.D. & RENVOIZE, S.A. 1982.
Flora of tropical East Africa
.
Gramineae
(Part 3)
CLAYTON, W.D. & RENVOIZE S.A. 1986. Genera graminum. Grasses of the world.
Kew Bulletin
. Additional series 13
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
PILGER, R.K.F. 1932.
Oxyrachis
.
Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem
11
WATSON, L. & DALLWITZ, M.J. 1994.
The grass genera of the world
, revised edn. CAB International, Oxon
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