WildBristol.uk - Discovering Wildlife in Bristol

Widespread and fairly frequent in the South; becoming more patchy in the North but locally frequent North of Hull, just North of Lancaster and parts of South East Scotland. Habitat includes: Disturbed places such as gardens, parks, allotments, churchyards, roadside verges, arable fields, wasteland, spoil heaps, pavements etc.

Useful Links:

Naturespot

Online Atlas of the British and Irish Flora

Kew

GBIF

EDIT

NBN