picnomon acarna, carlina corymbosa, centaurea calcitrapa, eryngium campestre, carthamus lanatus, helminthotheca echioides, lactuca serriola, medicago sativa, pallenis spinosa, sixalix atropurpurea, carduus tenuiflorus, chondrilla juncea, convolvulus arvensis, daucus carota, echinops ritro, hypochaeris radicata, mantisalca salmantica, onopordum acanthium, plantago lanceolata, silene vulgaris