Lycopodium Clavatum

Known as wolf foot or earth moss, from the Lycopodiaceas family, grows in Finland, Russia, Switzerland, Alps and Pyrenees, in rough terrain; growing in drain and dry land; prefers dry forests, developing under the bushes shade, crawling modestly on the floor; its spores are covered by a hard, thick shell, with inner fatty substance, which is eliminated after followed crunches.