gb, gloucestershire, gnaphalium uliginosum, cirsium arvense, poa annua, agrostis stolonifera, ranunculus repens, plantago major, lycopus europaeus, persicaria maculosa, trifolium repens, urtica dioica, holcus lanatus, juncus bufonius, argentina anserina, lysimachia arvensis, lythrum salicaria, tripleurospermum inodorum, plantago lanceolata, agrostis capillaris, juncus effusus, sagina procumbens, rumex crispus, pulicaria dysenterica, phragmites australis, stachys palustris, cirsium vulgare, persicaria hydropiper, juncus inflexus, chenopodium album, polygonum aviculare, matricaria discoidea, juncus tenuis, persicaria lapathifolia, juncus articulatus, bidens frondosa, sonchus asper, stellaria media, ranunculus flammula, potentilla reptans, equisetum arvense, hydrocotyle vulgaris, epilobium hirsutum, achillea millefolium, galium aparine, rumex acetosella, vicia sativa, phalaris arundinacea, lotus corniculatus, echinochloa crus-galli, iris pseudacorus, juncus bulbosus