echinochloa crus-galli, bolboschoenus maritimus, butomus umbellatus, carex acuta, carex melanostachya, lythrum salicaria, polygonum patulum, althaea officinalis, anthoxanthum repens, bidens tripartita, cirsium arvense, inula britannica, lipandra polysperma, mentha arvensis, stachys palustris, xanthium strumarium