quercus petraea, avenella flexuosa, castanea sativa, populus tremula, fagus sylvatica, frangula alnus, lonicera periclymenum, pteridium aquilinum, quercus robur, hedera helix, holcus mollis, luzula campestris, melampyrum pratense, pinus sylvestris, solidago virgaurea, viola riviniana