text: erigeron canadensis, fragaria vesca, populus nigra, salix purpurea, agrostis stolonifera, alopecurus geniculatus, arenaria serpyllifolia, clematis vitalba, erigeron annuus, erucastrum gallicum, eupatorium cannabinum, plantago major, populus alba, solidago gigantea, tussilago farfara, verbascum densiflorum, verbena officinalis