castanea sativa, quercus robur, cornus sanguinea, hedera helix, lonicera periclymenum, ulmus minor, ligustrum vulgare, rubia peregrina, arum maculatum, corylus avellana, crataegus monogyna, dioscorea communis, galium aparine, holcus mollis, pteridium aquilinum, ruscus aculeatus