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Herbaceous perrennial, creepng rootstock that readily regenerates from broken roots etc., also spreads by tiny seeds fluffy seeds being carried on the wind. Favours burnt areas in woodland, roadside & railway embankments/cuttings; hence a common name of Fireweed.
How old are these pressed flowers as the dates don't match,also they seem rather faded.
Lat/Lng: 51.8, 0.9
OS grid ref: TM0225