The only submerged species of Lemna in our area, L. trisulca is frequent in mesotrophic to eutrophic, still to slowly flowing waters where low nutrient levels or exposure prevent the development of a dense blanket of floating Lemna species. Reproduction is by vegetative budding; flowering is very rare. Generally lowland, but reaching 340 m at Kingside Loch (Selkirks.).
There have been some local losses, but the distribution of L. trisulca is otherwise stable.
Circumpolar Temperate element.
Perennation - primary
Life Form - primary
Clonality - primary
PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.