text: apera spica-venti, buglossoides arvensis, myosotis stricta, veronica hederifolia, arabidopsis thaliana, capsella bursa-pastoris, centaurea cyanus, cirsium arvense, elymus repens, fallopia convolvulus, oxalis stricta, papaver dubium, polygonum aviculare, roemeria argemone, silene latifolia, veronica triphyllos, vicia sativa, viola arvensis