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Ruppia maritima Linnaeus. Common name: Widgeon-grass, Ditch-grass. Phenology: Jul-Oct. Habitat: Brackish estuaries, rivers, marsh pools. Distribution: Nearly cosmopolitan.

Origin/Endemic status: Native

Taxonomy Comments: Crow & Hellquist (2023) discuss the possibility that two reproductively separated taxa are present, at least north of our region.

Synonymy ⓘ: = AqW, C, Can, FNA22, GW1, K4, Meso6, Mo1, NE, NY, RAB, S, S13, SFla, Tat, Tx, Va, WH3, Haynes (1978); > Ruppia maritima L. var. longipes Hagstr. — F; > Ruppia maritima L. var. maritima — F, G; > Ruppia maritima L. var. occidentalis (S.Watson) Graebn. — GrPl; > Ruppia maritima L. var. rostrata J.Agardh — F, G, GrPl. Basionym: Ruppia maritima L. 1753

Links to other floras: = Ruppia maritima - FNA22

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Great Plains: OBL
  • Northcentral & Northeast: OBL

Heliophily ⓘ: 9

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image of plant© Keith Bradley | Original Image ⭷
image of plant© Jay Horn source | Original Image ⭷
image of plant© Jay Horn source | Original Image ⭷
image of plant© Alan Cressler: Ruppia maritima, Gambusia Marsh, Gambusia Marsh Trail, Sea Rim State Park, Jefferson County, Texas 1 by Alan Cressler source | Original Image ⭷
image of plant© Jay Horn source | Original Image ⭷

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Horticultural Information

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