quercus robur, pteridium aquilinum, frangula alnus, pseudotsuga menziesii, hedera helix, pinus sylvestris, avenella flexuosa, betula pendula, castanea sativa, fagus sylvatica, ilex aquifolium, lonicera periclymenum, picea abies, pseudoscleropodium purum, teucrium scorodonia