Empetrum nigrum subsp. hermaphroditum
A low-growing evergreen shrub, favouring moderately well-drained acidic soils and occurring in dwarf shrub and Racomitrium heaths, rock crevices and dry heather moor, including areas of late snow-lie. Usually montane, occurring from 610 m to 1130 m in the Cairngorm (Easterness), but formerly on coastal dunes at Tain (E. Ross).
The two subspecies can occur together, but subsp. hermaphroditum replaces subsp. nigrum at the highest altitudes. The current distribution is similar to that in the 1962 Atlas, and it is probably still present in many of the squares for which there are no recent records.
Circumpolar Boreo-arctic Montane element; its distribution is more northerly than the Boreal-montane subsp. nigrum.
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