bolboschoenus maritimus, glyceria maxima, lythrum virgatum, potentilla reptans, alisma gramineum, althaea officinalis, atriplex prostrata, cirsium arvense, convolvulus arvensis, echinochloa crus-galli, elymus repens, euphorbia esula, inula britannica, jacobaea vulgaris, phalaris arundinacea, plantago major, rorippa palustris, rubia tatarica, rumex stenophyllus, sonchus arvensis