The habitats of this low shrub are blanket mire and rocky wet heath, where it occupies a somewhat narrower range of habitat than E. tetralix, avoiding the wettest sites. It grows on deep peat. The Irish plants of E. mackaiana never set seed. Their pollen fertility varies, but they produce sufficient fertile pollen to hybridise freely with E. tetralix to give the sterile hybrid E. x stuartii. Lowland.
Populations of E. mackaiana appear to be stable.
Oceanic Temperate element; restricted to N.W. Spain and Ireland.
Count of 10km squares in Great Britain: 0
Count of 10km squares in Ireland: 10
Count of 10km squares in the Channel Isles: 0
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.