Lamium album; The White Dead-nettle is an introduced weedy species on Iceland. One can find it only near human settlements. It spreads locally by sub-soil rootstocks. Characteristic for all members of the mint family are the square stems and the typical flower-shape. In this species the square stem is quite conspicuous.
It is a member of the mint family (Lamiaceeae). The Icelandic name of this species is Ljósatvítönn.