Ruppia | |
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Ruppia rostellata, R. brachypus, + R. spiralis[2] | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Alismatales |
Family: | Ruppiaceae Horan.[1] |
Genus: | Ruppia L. |
Synonyms[3] | |
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Ruppia, also known as the widgeonweeds,[4] ditch grasses or widgeon grass, is the only extant genus in the family Ruppiaceae, with eight known species.[5] These are aquatic plants widespread over much of the world.[3] The genus name honours Heinrich Bernhard Rupp, a German botanist (1688-1719).[6] They are widespread outside of frigid zones and the tropics.