ceratodon purpureus, filago arvensis, sedum acre, galinsoga quadriradiata, poa annua, sagina procumbens, spergularia rubra, achillea millefolium, cerastium semidecandrum, erigeron canadensis, matricaria discoidea, rumex acetosella, scorzoneroides autumnalis, senecio viscosus, trifolium arvense, veronica arvensis