buglossoides arvensis, convolvulus arvensis, centaurea cyanus, chenopodium album, cirsium arvense, alyssum alyssoides, euphorbia helioscopia, roemeria argemone, setaria viridis, viola arvensis, arenaria serpyllifolia, bromus squarrosus, bromus tectorum, descurainia sophia, galium aparine, lathyrus pratensis, lysimachia vulgaris, odontites luteus, vicia onobrychioides