eragrostis minor, bryum argenteum, amaranthus retroflexus, capsella bursa-pastoris, erigeron annuus, erigeron canadensis, erodium cicutarium, geranium pusillum, herniaria glabra, plantago lanceolata, plantago major, poa annua, trifolium repens, sonchus oleraceus, tripleurospermum inodorum