Vascular Plants of North Carolina
Account for European Waterclover - Marsilea quadrifolia    L.Only member of Marsilea in NC.
Google Images
Section 2 » Order Hydropteridales » Family Marsileaceae
Show/Hide Synonym
DistributionThis alien species was collected in 1977 from Suffolk Escarpment east of Sunbury in Gates County. Photographed in 2015 at Durant Nature Park, Wake County. A 1935 specimen from "Duke University" is without habitat or other details, so likely is from cultivated plants.

Native of Eurasia; in N.A. scattered from ME to Ont. and IA, south to NC, KY, MO.
AbundanceVery rare.
HabitatArtificial lake; "along Suffolk Escarpment."
IdentificationThis is an aquatic plant, often in lakes and ponds. Well-developed plants have a fertile frond that is slender, topped by 4 pinnae that resemble a four-leaved clover in shape and size; these are often resting directly on the water surface, but not always so.
Taxonomic Comments
Other Common Name(s)
State RankSE
Global RankG5
State Status
US Status
USACE-agcpOBL link
USACE-empOBL link
County Map - click on a county to view source of record.
Photo Gallery
Harry LeGrandDurant Nature Park, Wake County; 24 August 2020
Select a source
Select an occurrence type