text: apera spica-venti, draba verna, centaurea cyanus, tripleurospermum inodorum, veronica hederifolia, aphanes arvensis, arabidopsis thaliana, equisetum arvense, fallopia convolvulus, myosotis arvensis, myosotis stricta, roemeria argemone, silene latifolia, stellaria media, valerianella dentata, veronica arvensis, veronica persica, veronica triphyllos, vicia hirsuta, viola arvensis, arenaria serpyllifolia, capsella bursa-pastoris, polygonum aviculare