Unique

My sister is a member of the Woodland Trust and passes me  the Trust's magazine, "Broadleaf" to read. There was an excellent article in the last copy she gave me about foraging for food. Most of it was an interview with Gill Meller, head chef at River Cottage, but towards the end there some remarks from Simon Rogan who has an award winning restaurant at Cartmel, just south of the Lake District. What stunned me was the following quote; "In Cartmel we have many unusual herbs that are unique to the area - things like Sweet Cicely, Wood Sorrel and Mugwort." Now perhaps Mr Rogan is unique in making commercial culinary use of these ingredients, I don't know enough to judge. However I do know that Mugwort [ I assume he means Artemisia vulgaris ] can be found alongside rose bay Willow herb, Buddleia and Ragwort on most waste ground areas in Britain. Wood sorrel can be found in damp areas of woods across Britain. I am not sure of Sweet Cicely's distribution in Britain, but it is abundant in the valleys around here to the east on Manchester. This led me to wonder about genuine local food plants. I know around Bath they have species of Ornithigalum called Bath Asparagus. Are there any wild food plants you know of that are peculiar to the part of the world you live in?.