calluna vulgaris, pteridium aquilinum, chrysopogon gryllus, genista germanica, melampyrum pratense, molinia arundinacea, potentilla erecta, bromus erectus, castanea sativa, centaurea jacea, cytisus nigricans, danthonia decumbens, hypericum perforatum, polygala vulgaris, populus tremula, serratula tinctoria, solidago virgaurea, trommsdorffia maculata