populus canadensis, agrostis stolonifera, alopecurus pratensis, lolium perenne, dactylis glomerata, glechoma hederacea, cirsium arvense, urtica dioica, arrhenatherum elatius, ranunculus repens, anthriscus sylvestris, brachythecium rutabulum, carex hirta, cerastium holosteoides, cirsium vulgare, symphytum officinale