text: artemisia campestris, plantago arenaria, erigeron canadensis, senecio viscosus, arenaria serpyllifolia, centaurea stoebe, chaenorhinum minus, chenopodium album, dysphania botrys, erysimum cheiranthoides, euphorbia exigua, euphorbia peplus, medicago lupulina, plantago uliginosa, salsola tragus, setaria pumila, tripleurospermum inodorum, anchusa officinalis, diplotaxis tenuifolia, lappula squarrosa, verbascum densiflorum