The flora of Iceland comprises 470 species of indigenous and nationalized, vascular plants, including 37 species of Cryptogams, 1 Gymnosperm, nearly 290 of Dicotyledons, and 145 of Monocotyledons. Close to half of the Icelandic species are vascular plants of boreal origin and mostly found in the conifer regions of the northern hemisphere. About one third is of arctic-alpine origin, mostly found in the treeless areas north of the Arctic Circle and mountainous areas further south.
A wooly coat comes in handy in most parts of Iceland, and the wool from Icelandic sheep is famous for its dual quality of warmth & lightness. A protected breed, the Icelandic sheep has remained genetically the same for over a 1000 years. Sheep roam freely all over the countryside in the spring & summer months, and are only rounded up in the fall.