quercus petraea, pteridium aquilinum, avenella flexuosa, vaccinium myrtillus, fagus sylvatica, torminalis glaberrima, betula pendula, calluna vulgaris, castanea sativa, frangula alnus, hedera helix, hypnum cupressiforme, leucobryum glaucum, pleurozium schreberi, ilex aquifolium