argentina anserina, carex nigra, juncus articulatus, juncus effusus, leptodictyum riparium, lolium pratense, phleum pratense, agrostis stolonifera, alopecurus geniculatus, elymus repens, juncus bufonius, poa pratensis, sagina procumbens, trifolium repens, juncus conglomeratus, persicaria maculosa, plantago major, poa trivialis, trifolium fragiferum