Source:
SSA
Description:
Perennial, tufted, long rhizomatous; culms creeping extensively and rooting from lower nodes. Leaf blade rigid, convolute, pungent; ligule an unfringed membrane. Inflorescence a dense, spike-like panicle, cylindrical; spikelets sessile or shortly pedicelled. Spikelet strongly laterally compressed, disarticulating above glumes, rachilla extension present; glumes 10 mm and longer, +/- equal to, to longer than spikelet, keeled, acute, awnless; lower glume 1-nerved; upper glume 1-3-nerved. Floret 1, bisexual; lemma lanceolate, similar in texture to glumes, glabrous, keeled, 5-7-nerved, 2-lobed with subapical mucro; callus short, hairy; palea almost equalling lemma, 2-4-nerved. Lodicules 2. Stamens 3. Ovary glabrous. Caryopsis ellipsoid. x= 7 (high polyploidy).
Distribution:
Species 2, north temperate; 1 naturalised in sthn Afr.: * Ammophila arenaria (L.) Link, used for reclamation work on sand dunes in southern Cape region.
Classification:
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