arabidopsis thaliana, draba verna, poa annua, veronica hederifolia, veronica triphyllos, agrostis capillaris, arenaria serpyllifolia, cerastium holosteoides, erodium cicutarium, lamium amplexicaule, lamium purpureum, matricaria discoidea, myosotis stricta, raphanus raphanistrum, roemeria argemone, sagina procumbens, spergula arvensis, viola arvensis