Summary of NVC groups identified in the waterlogged assemblage,,, ,,, NVC Group,Description,Constants (4 or 5),No. of samples OV1,"Arable crops, impoverished soils","Aphanes australis, Rumex acetosella, Viola sp.",2 OV9,"Disturbed, well-drained ground","Polygonum aviculare, Stellaria media, Tripleurospermum inodorum",9 OV18,Trampled ground,"Capsella bursa-pastoris, Matricaria recututa, Polygonum aviculare",3 OV21c,Heavily trampled ground,"Plantago major, Polygonum aviculare, Ranunculus repens, Trifolium sp.",2 M35,Temporary wet areas,"Montia fontana, Ranunculus S. Batrachium, Ranunculus flammula",3