text: poa annua, plantago major, capsella bursa-pastoris, lolium perenne, matricaria discoidea, trifolium repens, anthriscus sylvestris, artemisia vulgaris, erigeron canadensis, lamium album, poa pratensis, polygonum aviculare, tripleurospermum inodorum, cerastium holosteoides, rumex thyrsiflorus