erigeron acris, arabidopsis arenosa, carex arenaria, viola arvensis, avenella flexuosa, calamagrostis epigejos, persicaria lapathifolia, pleurozium schreberi, poa annua, tussilago farfara, agrostis capillaris, festuca rubra, luzula multiflora, persicaria maculosa, rubus idaeus, rumex acetosella