tripleurospermum maritimum, cirsium arvense, erigeron canadensis, lolium perenne, sonchus arvensis, agrostis gigantea, agrostis stolonifera, atriplex prostrata, brassica nigra, chenopodium album, elymus repens, epilobium hirsutum, epilobium palustre, matricaria chamomilla, persicaria maculosa, plantago major, poa pratensis, polygonum aviculare, senecio vulgaris, sonchus oleraceus, tussilago farfara