Thalassia (plant)

{{Short description|Genus of aquatic plants}}

{{Automatic taxobox

|image = Thalassia hemprichii.jpg

|image_caption = Thalassia hemprichii1900 illustration from Hemprich F.G. & Ehrenberbg C.G. - Symbolae physicae seu Icones Adhuc Inditeae : coroprum naturalium novorum aut minus cognitorum

|taxon = Thalassia

|authority = Banks ex K.D.König{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?12025 |title=Genus: Thalassia Banks ex K. D. Koenig |work=Germplasm Resources Information Network |publisher=United States Department of Agriculture |date=2010-01-25 |accessdate=2012-11-13}}

|synonyms_ref = [http://apps.kew.org/wcsp/synonomy.do?name_id=308871 Kew World Checklist of Selected Plant Families]

|synonyms = Schizotheca Ehrenb.

|type_species = Thalassia testudinum

|type_species_authority = Banks ex K.D.König{{Cite book|last=den Hartog|first=C.|author-link=Cornelis den hartog|editor-last= Larkum |editor-first=Anthony W.D. |editor2-last=Duarte|editor2-first=Carlos|editor3-last=Orth|editor3-first= Robert J.|contribution = Taxonomy and biogeorgraphy of seagrasses| title = Seagrasses: Biology, Ecology and Conservation |publisher= Springer-Verlag New York, LLC|year=2005|isbn=978-1-4020-2942-4}}

}}

Thalassia is a marine seagrass genus comprising two known species.