euphorbia peplus, oxalis stricta, stellaria media, amaranthus retroflexus, convolvulus arvensis, elymus repens, erigeron canadensis, euphorbia helioscopia, lamium amplexicaule, linaria vulgaris, malva neglecta, matricaria chamomilla, plantago major, poa annua, polygonum aviculare, ranunculus repens, senecio vernalis, setaria pumila, sonchus arvensis, spergula arvensis, thlaspi arvense, veronica serpyllifolia