cirsium arvense, elymus repens, capsella bursa-pastoris, convolvulus arvensis, poa trivialis, polygonum aviculare, argentina anserina, arrhenatherum elatius, carduus crispus, galium aparine, lamium maculatum, papaver rhoeas, persicaria amphibia, persicaria lapathifolia, persicaria mitis, plantago lanceolata, tripleurospermum maritimum, urtica dioica