agrostis capillaris, plantago major, arabidopsis arenosa, arenaria serpyllifolia, bromus hordeaceus, lolium perenne, poa annua, bromus tectorum, hypochaeris radicata, medicago lupulina, pilosella officinarum, plantago lanceolata, thymus serpyllum, veronica serpyllifolia, anchusa officinalis, capsella bursa-pastoris, erigeron canadensis, linaria vulgaris, lotus corniculatus