text: picnomon acarna, eryngium campestre, carlina corymbosa, chondrilla juncea, onopordum acanthium, anacyclus clavatus, carduus tenuiflorus, convolvulus arvensis, daucus carota, helminthotheca echioides, lactuca serriola, mantisalca salmantica, medicago sativa, sixalix atropurpurea, sonchus asper