erigeron canadensis, erigeron floribundus, agrostis stolonifera, symphyotrichum squamatum, cyperus eragrostis, digitaria sanguinalis, epilobium hirsutum, helminthotheca echioides, medicago lupulina, persicaria lapathifolia, epilobium parviflorum, plantago major, scrophularia auriculata, solanum nigrum, trifolium repens, verbena officinalis