S. H. Wright

Bull. Torrey Bot. Club 14: 135. 1887.

Etymology: For G. W. Webster, 1833–1914, American botanist and farmer
Treatment appears in FNA Volume 23. Treatment on page 120. Mentioned on page 6.

Herbs, perennial, not cespitose, stoloniferous, aquatic. Culms many-stemmed (branched), with stems in successive false whorls, terete; whorls terminating in clusters of leaves essentially indistinguishale from stems. Leaves sheaths, tubular, transparent, or scalelike when subtending stems; ligules absent; blades absent. Inflorescences terminal; spikelets 1; involucral bracts absent. Spikelets borne singly on branches arising from among leaves; scales 2, distichous, proximal empty, distal subtending flower. Flowers bisexual; perianth bristles 6–11, straight or curved, slightly longer than achene, retrorsely spinulose; stamens 3; styles persistent, linear, 2-fid, base slightly enlarged. Achenes biconvex.


Tropical and subtropical regions worldwide.


Species 1.

Selected References