agrostis stolonifera, alopecurus geniculatus, spergularia marina, argentina anserina, atriplex prostrata, eleocharis palustris, elymus repens, gnaphalium uliginosum, matricaria chamomilla, persicaria amphibia, plantago uliginosa, poa annua, polygonum aviculare, trifolium repens, poa pratensis, amblystegium serpens