oenothera biennis, arenaria serpyllifolia, crepis capillaris, erigeron canadensis, cerastium holosteoides, elymus repens, equisetum arvense, holcus lanatus, lolium perenne, medicago lupulina, melilotus albus, papaver rhoeas, plantago lanceolata, rumex acetosella, rumex crispus, senecio inaequidens, sisymbrium officinale, sonchus oleraceus, trifolium arvense, trifolium repens, tripleurospermum maritimum