Main Page | See live article | Alphabetical index Johnson's seagrass in Florida coast Seagrass (or sea-grass in British English) is a term that refers to flowering plants from two plant families (Potamogetonaceae and Hydrocharitacea) that grow in the marine environment. They are called seagrasses only because most species superficially resemble terrestrial grasseses of the Family Poaceae. Because these plants must photosynthesize, they are limited to growing in the photic zone, and most occur in shallow, tropical, coastal waters characterized by sand or mud bottom. Herbivores that consume seagrass include dugong, some juvenile fish, and crabs. Some fishes lay eggs on the blades. Floridan coast Genera of sea grasses: Table of contents 1 Potamogetonaceae 2 Hydrocharitaceae 3 See also Potamogetonaceae Amphibolis Cymodocea Halodule Heterozostera Phyllospadix Posidonia Syringodium Zostera Eelgrass Zostera marina Thalassodendron Hydrocharitaceae Enhalus Halophila Thalassia See also Alismatales Reference: den Hartog, C. 1970. The Sea-grasses of the World. Verhandl. der Koninklijke Nederlandse Akademie van Wetenschappen, Afd. Natuurkunde, No. 59(1). This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.