This map has been generated by Mapmate 04/11/2011
Distribution:
Long known from the west of the vice-county about Knowsley & Kirkby but extending inland as small scattered populations as far as Rochdale (SD9010) and Brierfield (SD8336).
Habitat:
Woods, woodland borders, field scrub and old railways.
Taxon Designation:
South Lancashire Axiophyte.
Comments:
The South Lancashire populations are likely to have originated from the major populations of North Wales.