urtica dioica, cirsium arvense, elymus repens, poa trivialis, arrhenatherum elatius, glechoma hederacea, anthriscus sylvestris, convolvulus arvensis, phragmites australis, symphytum officinale, fallopia convolvulus, geranium molle, heracleum sphondylium, persicaria amphibia, polygonum aviculare, populus canadensis, ranunculus repens, rumex obtusifolius, sonchus oleraceus