Mentha aquatica; The Water Mint is an extremely rare species on Iceland, but it can be found very easily; at the hot springs of Reykjanes in the westfjords. Here bathers in their swimming pants and bikini's walk unaware along this rare occurance on Iceland. It only grows on thermal soils in two localities on Iceland of which Reykjanes in North-Western Iceland is one. It is believed the species is a rather new accidental introduction on Iceland. It can be used to make mint-tea: the odour is unmistaken mint-like, but other mint species are better for the purpose.
It is a member of the mint family (Lamiaceeae). The Icelandic name of this species is Vatnamynta.