 Trunks are sometimes over in diameter at chest height and only high, probably due to poor soil.The fire seems to have been the cause of the low density of trees and the abundant Ericaceae and lichens in the undergrowth, which reduces competition from balsam fir.The shrub and herbaceous layer is dominated by species adapted to poor and dry environments such as sheep laurel ("Kalmia angustifolia"), common blueberry ("Vaccinium myrtilloides"), lowbush blueberry ("Vaccinium angustifolium"), Cladonia rangiferina ("Cladonia rangiferina"), green reindeer lichen ("Cladonia mitis") and northern reindeer lichen ("Cladonia stellaris").