FLORA OF ICELAND elements: Lycopodium alpinum, alpine clubmoss, Litunarjafni

Lycopodium alpinum also known as Diphasium alpinum and Diphasiastrum alpinum; The Alpine Clubmoss has upright fertile branches with terminal spikes of sporophyllia (leaves that have spore-forming organs) which are only about 10-15 cm. Often these fertile branches form small tuft-like rosettes placed along the infertile branches. The latter branches creep along the ground and can form quite long runners. The plant seems to grow well where there is abundant snow in winter. Thus it is more common in the north and confined to the mountains of the south-west and south-east in the southern part of Iceland.
On Iceland it is known as Litunarjafni. It is a member of the Lycopodiaceae - the clubmoss family.