argentina anserina, spergularia rubra, alopecurus aequalis, juncus filiformis, persicaria lapathifolia, polygonum aviculare, scorzoneroides autumnalis, gnaphalium uliginosum, herniaria glabra, mentha arvensis, plantago major, poa annua, poa palustris, rorippa palustris, rumex crispus, trifolium repens, veronica serpyllifolia, bidens tripartita, hypericum perforatum