| water purslane | |
| —n | |
| 1. | an onagraceous marsh plant, Ludwigia palustris, of temperate and warm regions, having reddish stems and small greenish flowers |
| 2. | any of several lythraceous plants of wet places that resemble purslane, such as Peplis portula of Europe, which has small pinkish flowers, and Didiplis diandris of North America, which has small greenish flowers |