lepidium draba, amaranthus retroflexus, poa angustifolia, poa annua, thlaspi arvense, anchusa ochroleuca, bromus sterilis, buglossoides arvensis, capsella bursa-pastoris, carduus nutans, chenopodium vulvaria, convolvulus arvensis, echium vulgare, euphorbia helioscopia, galinsoga parviflora, geranium pusillum, linum perenne, plantago major, polygonum aviculare, setaria verticillata, taraxacum serotinum, vicia sativa, xeranthemum annuum