text: erigeron canadensis, saponaria officinalis, stellaria media, achillea millefolium, ambrosia artemisiifolia, arctium lappa, artemisia vulgaris, ballota nigra, berteroa incana, chelidonium majus, cirsium vulgare, crepis tectorum, oxybasis rubra, plantago major, polygonum aviculare, thlaspi arvense, acer negundo, erigeron annuus, lipandra polysperma, potentilla argentea, robinia pseudoacacia