artemisia vulgaris, carduus acanthoides, helianthus tuberosus, solidago canadensis, solidago gigantea, tripleurospermum inodorum, arctium minus, atriplex sagittata, bromus tectorum, calamagrostis epigejos, chelidonium majus, convolvulus arvensis, elymus repens, hordeum murinum, lactuca serriola, poa compressa, poa pratensis, poa trivialis, sisymbrium loeselii, tussilago farfara, arrhenatherum elatius, daucus carota, erigeron canadensis, impatiens parviflora, potentilla reptans, reseda luteola, salix caprea, urtica dioica