centaurea cyanus, erigeron annuus, lathyrus tuberosus, achillea millefolium, cirsium arvense, delphinium consolida, elymus repens, euphorbia platyphyllos, hypericum perforatum, nigella arvensis, papaver rhoeas, raphanus raphanistrum, sonchus oleraceus, thlaspi arvense, trifolium pratense, tripleurospermum inodorum