quercus robur, lonicera periclymenum, sorbus aucuparia, frangula alnus, hedera helix, prunus padus, alnus glutinosa, amelanchier lamarckii, corylus avellana, fagus sylvatica, sambucus nigra, avenella flexuosa, dryopteris dilatata, maianthemum bifolium, melampyrum pratense, molinia caerulea, polygonatum multiflorum, polypodium vulgare, pteridium aquilinum, ribes nigrum