euphorbia esula, sonchus arvensis, lythrum virgatum, cirsium arvense, inula britannica, achillea salicifolia, alisma lanceolatum, anthoxanthum repens, bolboschoenus glaucus, eleocharis acicularis, elymus repens, glyceria arundinacea, gratiola officinalis, persicaria amphibia, phalaris arundinacea, schoenoplectus lacustris, stachys palustris, thalictrum flavum