erigeron canadensis, acer negundo, lactuca serriola, cirsium arvense, glechoma hederacea, ranunculus repens, urtica dioica, verbascum nigrum, ballota nigra, calystegia sepium, elymus repens, equisetum arvense, galinsoga parviflora, geum urbanum, poa trivialis, rubus caesius, atriplex patula, plantago major, tripleurospermum inodorum