Aquatic perennial.
Inflorescence terminal, composed of digitate or subdigitate racemes. Racemes ± flattened, tardily disarticulating; internodes and pedicels thickened, clavate, hollowed at the summit.
Sessile spikelet: callus truncate; lower glume produced into a long flattened tail; lower floret male with hyaline lemma and palea; upper lemma entire and awnless.
Pedicellate spikelet similar to the sessile. Worldwide: 1 species throughout tropical Africa as far N as the Nile Delta and in India |
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