populus canadensis, urtica dioica, glechoma hederacea, arrhenatherum elatius, galium aparine, alopecurus pratensis, holcus lanatus, brachythecium rutabulum, cirsium arvense, dactylis glomerata, poa trivialis, sambucus nigra, silene dioica, symphytum officinale, epipactis helleborine, heracleum sphondylium, lolium perenne