echium vulgare, achillea millefolium, lolium perenne, cerastium arvense, elymus repens, medicago falcata, agrostis capillaris, alyssum alyssoides, berteroa incana, bromus sterilis, capsella bursa-pastoris, cerastium holosteoides, convolvulus arvensis, plantago lanceolata, poa pratensis, potentilla argentea, scleranthus annuus, erigeron canadensis