hordeum murinum, lepidium virginicum, poa annua, erigeron floribundus, lobularia maritima, lolium perenne, parapholis cylindrica, piptatherum miliaceum, plantago lanceolata, polygonum aviculare, sonchus oleraceus, bromus hordeaceus, carex divulsa, catapodium rigidum, crepis capillaris, medicago lupulina, oxalis corniculata, petroselinum crispum, picris hieracioides, plantago major, polycarpon tetraphyllum, symphyotrichum squamatum