text: anthoxanthum aristatum, arnoseris minima, capsella bursa-pastoris, centaurea cyanus, equisetum arvense, erigeron canadensis, galeopsis tetrahit, knautia arvensis, persicaria lapathifolia, polygonum aviculare, raphanus raphanistrum, scleranthus annuus, spergula arvensis, veronica dillenii, veronica verna