cerastium semidecandrum, ceratodon purpureus, saxifraga tridactylites, arenaria serpyllifolia, bromus tectorum, roemeria argemone, viola arvensis, poa annua, sedum acre, senecio vernalis, gemmabryum caespiticium, gemmabryum dichotomum, papaver dubium, sisymbrium loeselii, arabidopsis arenosa, capsella bursa-pastoris, erigeron canadensis, myosotis stricta