chenopodium vulvaria, ballota nigra, capsella bursa-pastoris, centaurea oxylepis, digitaria sanguinalis, elymus repens, eragrostis minor, erigeron canadensis, lipandra polysperma, lolium perenne, potentilla reptans, setaria viridis, sonchus oleraceus, trifolium pratense, trifolium repens, amaranthus retroflexus, euphorbia peplus, portulaca oleracea, veronica polita