ceratodon purpureus, roemeria argemone, equisetum arvense, erigeron canadensis, senecio vernalis, tussilago farfara, anthemis arvensis, bromus tectorum, bryum argenteum, convolvulus arvensis, elymus repens, fallopia convolvulus, gemmabryum caespiticium, lycopsis arvensis, arenaria serpyllifolia, barbula unguiculata, silene latifolia, streblotrichum convolutum