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Hydrocotyle umbellata Linnaeus. Marsh Water-pennywort. Phen: Apr-Oct. Hab: Moist areas, including maritime grasslands. Dist: NB; near the Great Lakes in w. NY, ne. OH, s. MI, n. IN, and ne. IL; MA to s. FL, west to sc. TX, south through Mexico to Central America and South America; CA south into Mexico; West Indies.

ID notes: Hydrocotyle umbellata can co-occur in maritime situations with H. bonariensis, which has larger leaves the blade generally held at a right angle to the ground's surface.

Origin/Endemic status: Native

Synonymy: = Ar, Bah, C, F, Fl7, G, GW2, Il, K1, K3, K4, MC, Meso4.1, Mex, Mi, NcTx, NE, NY, Ok, Pa, RAB, S, Tat, Tn, Tx, Va, WH3; < Hydrocotyle umbellata L. – NE

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Great Plains: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily ?: 6

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image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Alan Cressler: Hydrocotyle umbellata, Lake Wales Ridge, Lake Wales Ridge Wildlife and Environmental Area, Highlands County, Florida 1 by Alan Cressler source | Original Image ⭷


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