amaranthus retroflexus, arenaria serpyllifolia, camelina microcarpa, chenopodium album, chondrilla juncea, erigeron canadensis, euphorbia helioscopia, fumaria rostellata, holosteum umbellatum, linaria genistifolia, melilotus officinalis, senecio vernalis, sonchus oleraceus, trifolium pratense, xeranthemum annuum