gratiola officinalis, phalaris arundinacea, achillea salicifolia, althaea officinalis, bolboschoenus maritimus, cirsium arvense, euphorbia esula, inula britannica, lythrum virgatum, mentha arvensis, plantago major, polygonum arenarium, rubia tatarica, alisma plantago-aquatica, dodartia orientalis, persicaria minor