Sweet violet elm woods

Nitrophile [Ulmus minor] or [Ulmus procera] woods of the western seaboard of the European continent, from northern France to Poland, distributed, in particular, in the Paris Basin, in the maritime dunes of the Netherlands and Belgium, on the dikes of the Dutch fluviatile district and on the cretaceous low Meuse hills, sporadically also in suburban forests, parks and green spaces throughout its range.