stellaria media, apera spica-venti, aphanes arvensis, arabidopsis thaliana, arenaria serpyllifolia, capsella bursa-pastoris, centaurea cyanus, lamium purpureum, myosotis arvensis, poa annua, thlaspi arvense, tripleurospermum inodorum, valerianella locusta, veronica hederifolia, viola arvensis, roemeria argemone