… which has been masquerading as False Dead Nettle on these pages up till now.
Anyway, Gipsywort (Lycopus Europaeus):
It is reputed to have medicinal qualities and has been used by various peoples as an astringent, cosmetic, douche, narcotic and refrigerant. It has also been used to treat fever, hyperthyroidism, sores and wounds. Several research studies have been undertaken on the properties of this plant.
The name Gipsywort comes from the belief that Gipsies were reputed to stain their skin with the juice of the plant, although Howard (1987) states that they used it to dye their linen.
Also gipsy or gypsy? Apparently you can have both.