bidens frondosa, galeopsis pubescens, persicaria maculosa, ambrosia artemisiifolia, arctium lappa, brassica nigra, pastinaca sativa, persicaria lapathifolia, plantago major, anthemis cotula, polygonum aviculare, conium maculatum, erigeron canadensis, galinsoga parviflora, potentilla reptans, solanum villosum, urtica dioica