Leaf blade
linear, expanded or rolled; ligule an unfringed membrane
Inflorescence
an open panicle; spikelets not secund, pedicelled
Spikelet
small, less than 3 mm long, laterally compressed, disarticulating above glumes; glumes ± equal, shorter than spikelet, similar, membranous, 1-3-nerved, awnless
Florets
2, bisexual, separated by an elongated internode; lemma lanceolate, rounded on back, irregularly toothed, 3-7-nerved, awnless; callus hairy; palea shorter than lemma, rounded on back
Lodicules
2
Stamens
3
Ovary
glabrous
Caryopsis
narrowly oblong, flattened on one face
x = 7 (4)
Nomenclature:
*Periballia
Trin.
Trinius: 133 (1820)
Clayton & Renvoize: 131 (1986)
Gibbs Russell et al.: 265 (1990)
Watson & Dallwitz: 711 (1994)
Distribution & Notes:
Global
: Species 3, Mediterranean
Southern Africa
: Species 1: *
Periballia minuta
(L.) Asch. & Graebn., naturalised, Western Cape
References:
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
WATSON, L. & DALLWITZ, M.J. 1994.
The grass genera of the world
, revised edn. CAB International, Oxon
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