In North America
Calystegia soldanella is found on the west coast and selected areas of the east coast. In the
United Kingdom it is widespread on the sandy coasts of England and Wales, less common in
Scotland and
Northern Ireland. It is also widespread around the coast of
Ireland, the Isle of Man, and Mediterranean coast. In the southern hemisphere
Calystegia soldanella can be found in coastal areas of Australia, New Zealand, southern South America and South Africa. In 1973, botanical illustrator
Nancy Adams collected this species on the south coast of
Wellington, New Zealand and it was still abundant there 51 years later. ==References==