quercus petraea, avenella flexuosa, betula pubescens, fagus sylvatica, lonicera periclymenum, pteridium aquilinum, hedera helix, ilex aquifolium, castanea sativa, corylus avellana, dryopteris carthusiana, frangula alnus, holcus mollis, melampyrum pratense, mespilus germanica, polygonatum multiflorum, polytrichum formosum, vaccinium myrtillus