arabidopsis thaliana, capsella bursa-pastoris, chenopodium album, cirsium arvense, elymus repens, galinsoga quadriradiata, myosotis arvensis, tripleurospermum inodorum, vicia hirsuta, achillea millefolium, arenaria serpyllifolia, centaurea cyanus, crepis tectorum, draba verna, equisetum arvense, galinsoga parviflora, gnaphalium uliginosum, persicaria lapathifolia, plantago uliginosa, poa annua, roemeria argemone, scleranthus annuus, spergula arvensis, stellaria media, vicia sativa, aphanes arvensis, euphorbia helioscopia, lycopsis arvensis, matricaria discoidea, thlaspi arvense