The pitch pine (Pinus rigida) belongs to Pinaceae (the Pine family). It is a tall evergreen tree that is distributed over the northeastern and southeastern parts of North America. This tree grows on gravel in the mountains and hills, and the height is 6 to 20 meters. The bark is reddish-brown, coarse, and scaly. The leaves are needle-shaped, and three leaves are bundled and slightly bent. The cone (pine cone) is similar to "Japanese red pine". It is characterized by direct adventitious buds directly from the thick trunk and many cones on the tree all year round.