populus canadensis, arrhenatherum elatius, anthriscus sylvestris, heracleum sphondylium, lolium perenne, agrostis capillaris, elymus repens, glechoma hederacea, holcus lanatus, persicaria amphibia, poa trivialis, trifolium repens, urtica dioica, dactylis glomerata, potentilla reptans, ranunculus acris, ranunculus repens, rumex acetosa, vicia cracca, cerastium holosteoides, cirsium arvense, equisetum arvense, epipactis helleborine, medicago lupulina