calamagrostis epigejos, solidago canadensis, tanacetum vulgare, tussilago farfara, achillea millefolium, centaurea jacea, equisetum arvense, poa palustris, populus canadensis, agrostis stolonifera, hypericum perforatum, melilotus albus, mentha arvensis, poa compressa, poa pratensis, erigeron annuus