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Zizania texana

ZIZANIA L. Wildrice
Plants monoecious, rooting at the nodes, perennial. Culms decumbent, glabrous; internodes hollow, terete. Leaves basal and cauline, not distinctly distichous; sheaths terete, margins open; auricles absent; ligules membranous; blades flat, linear, lax (ours frequently floating). Panicles open, lower branches in whorls or paired; primary branches ascending or spreading, lower branches ascending or spreading, drooping and with staminate spikelets; upper branches ascending with pistillate spikelets. Spikelets unisexual. Staminate spikelets solitary, laterally compressed, disarticulation at spikelet base, mucronate or awnless, pedicellate, pendulous; glumes absent (0), florets 1; lemmas 5-veined, membranous, glabrous, mucronate or awnless; paleas 3-veined, mucronate or awnless, glabrous. Stamens 6; anthers yellow. Pistillate spikelets solitary, laterally compressed or terete, disarticulation at spikelet base; awned pedicellate; glumes absent (0), florets 1; lemmas 3-5-veined, membranous, glabrous, awned (1) from apex, pedicellate; paleas 3-veined (1 keel), awnless, glabrous. Caryopses terete. Base chromosome number x=15. A small genus of about three species. These species are adapted to wetlands.