Club moss
Club Moss, the common name for a family of small, trailing evergreen plants. Club mosses are found in North America, Europe, and Asia. They are not true mosses. Their long slender stems trail along the ground, sending short, branched roots into the soil. A number of upright branches, none of them more than 12 inches (30 cm) high, rise from the stems. The simple, pointed leaves are dark green. Some species, called ground pines or ground firs, have needlelike leaves. There are no flowers or seeds. Spores contained in cases at the tops of the branches are spread by the wind to reproduce the plant. Some kinds of club moss can also be propagated by cuttings.
Club mosses make up the family Lycopodiaceae. The name is given in particular to the genus Lycopodium. Ground pines are L. obscurum or L. clavatum, and are sometimes called staghorn moss.