heliotropium europaeum, amaranthus blitoides, amaranthus retroflexus, anchusa hybrida, chenopodium album, chrozophora tinctoria, convolvulus arvensis, cynodon dactylon, diplotaxis erucoides, ecballium elaterium, euphorbia maculata, euphorbia prostrata, helminthotheca echioides, medicago lupulina, melilotus albus, reseda phyteuma, trifolium repens