Enhalus Rich.

Dioecious, submerged, marine, perennial herbs. Roots coarse, simple. Stem elongate, rhizomatous, rarely branched, with very short internodes. Leaves sessile, distichously arranged at the end of the rhizome, distinctly sheathing at the base, opaque or somewhat translucent, with numerous longitudinal veins and septate air channels; margins green, entire or serrulate near the apex in young leaf. Flowers solitary spathe in the leaf-axil, pedunculate, with numerous flowers, composed of 2 partly connate bracts, shortly pedicellate; sepals 3, oblong, acute; petals 3, ovate, acute, papillose. Ovary of 6 carpels, narrowly cylindric, densely hairy, 1-locular, placentation parietal. Fruit ovoid to subglobose, acuminate, ribbed, densely hairy, opening by decay of the pericarp. Seeds obconical, angular.

Worldwide: One species.

Mozambique: 1 taxon.