asclepias syriaca, elymus repens, hypericum perforatum, solidago gigantea, urtica dioica, artemisia vulgaris, calamagrostis epigejos, cirsium arvense, convolvulus arvensis, glechoma hederacea, echinops sphaerocephalus, erigeron canadensis, falcaria vulgaris, humulus lupulus, lolium perenne, persicaria amphibia, tanacetum vulgare, vicia tetrasperma