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Dissections:
Dactyloctenium aegyptium

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DACTYLOCTENIUM Willd.
Plants hermaphroditic, caespitose or stoloniferous, annuals (ours) or perennials. Culms mat forming, glabrous; internodes solid, terete. Leaves cauline; sheaths with compressed keels, margins connate; auricles absent; ligules a ciliate membrane; blades flat, not pungent. Panicles of 2-10 spicate primary unilateral branches; branches digitate, spreading, terminating in a bare point. Spikelets solitary, laterally compressed, sessile; disarticulation above glumes; florets 2-7, callus glabrous; reduced florets at apex; glumes 1-veined, unequal, shorter than first floret, glabrous; lemmas 3-veined, membranous, entire, awned or mucronate, glabrous, veins glabrous; paleas 2-veined, awnless, scabrous. Stamens 3; anthers yellow. Achenes with free pericarp, terete, suborbicular, transversely rugose. Base chromosome number x = 10.

A genus of about 13 species native to Africa, Australia, and Eurasia. These species are common in open habitats, some are disturbance species while others occupy dry, sandy habitats.