Snow Dusted Reindeer Moss

Reindeer Lichen, like many lichens is very slow growing (3-4mm per year)

The Inland Dena'ina used this lichen for food by crushing the dry plant and

then boiling it or soaking it in hot water until it became soft.  They used

to eat it with berries, fish eggs, or lard.  

If this moss is disturbed it can take decades to regrow.