quercus robur, pteridium aquilinum, smilax aspera, brachypodium sylvaticum, castanea sativa, centaurea nigra, erica lusitanica, fraxinus excelsior, hedera helix, helleborus viridis, hypericum androsaemum, jacobaea erratica, polystichum aculeatum, potentilla erecta, potentilla montana, pulmonaria longifolia, ruscus aculeatus, stachys officinalis