Hampshire Purslane
Ludwigia palustris (L.) Elliott

Ludwigia palustris (L.) Elliott is a perennial herb in the Onagraceae family, commonly known as Hampshire Purslane. It is found in wet and flooded habitats and is native to regions including Newfoundland, British Columbia, and parts of Europe and the Americas. The species was published in 1817.
Description
Ludwigia palustris is an aquatic or semi-aquatic plant native to wetland environments. It is distributed across Newfoundland, British Columbia, New Brunswick, Nova Scotia, Ontario, Quebec, and other regions such as Portugal, Afrotropical, Australasian, Nearctic, Neotropical, Palaearctic, and parts of Australia and New Zealand. The species is sometimes considered a weed. Its name reflects its marsh habitat, with 'palustris' meaning 'of the marsh' in Latin. The plant is part of the evening primrose family and is also known by the common names marsh seedbox and water purslane.
Other common names
Hampshire PurslaneHampshire-PurslaneMarsh LudwigiaMarsh Primrose-WillowMarsh PurslaneMarsh SeedboxMarsh-PurslaneWater False LoosestrifeWater PurslaneWater-Purslane
Distribution
Newfoundland · British Columbia · New Brunswick · Nova Scotia · Ontario · Quebec · Portugal Continental · Afrotropical · Australasian · Nearctic · Neotropical · Palaearctic · TW · Puerto Wilches · Flanders · SE · Vermont-US · ZM · AU · NZ · Garden Route National Park · GE · Cundinamarca · Global · Andina, Orinoquia · Hawaii · Belgium · Flemish Region · Alabama · Albania
Synonyms
Jussiaea isnardiaQuadricosta palustrisLudwigia apetalaLudwigia nitidaLudwigia palustris var. nanaDantia palustrisIsnardia ascendensIsnardia nitidaIsnardia palustrisLudwigia palustris var. americanaIsnardia palustris var. americanaLudwigia palustris f. submersaLudwigia palustris f. elongataLudwigia palustris var. inundataLudwigia palustris var. liebmanniiLudwigia palustris var. pacificaLudwigia palustris var. typicaIsnardia palustris f. submersaIsnardia palustris var. rivularisIsnardia palustris var. riparia