persicaria hydropiper, echinochloa crus-galli, erysimum cheiranthoides, rorippa amphibia, amaranthus retroflexus, artemisia vulgaris, bidens frondosa, carduus crispus, equisetum arvense, erigeron canadensis, erysimum marschallianum, fallopia dumetorum, lipandra polysperma, lotus corniculatus, oxalis stricta, persicaria lapathifolia, persicaria maculosa, setaria pumila, stellaria aquatica, symphytum officinale, tanacetum vulgare, tripleurospermum inodorum, capsella bursa-pastoris, galinsoga parviflora, galinsoga quadriradiata, galium aparine, helianthus tuberosus, sonchus oleraceus, urtica dioica