Concolor fir (abies concolor), also known as white fir or Rocky Mountain white fir, is a species of evergreen tree that is native to western North America. It is highly valued as an ornamental tree for its attractive appearance, including its bluish-green needles and symmetrical shape.
The Concolor fir typically grows to a height of 50-100 feet (15-30 meters) and has a narrow, conical shape. Its needles are 1-2 inches (2.5-5 cm) long and arranged in a spiral pattern on the branches. Unlike many other firs, the Concolor fir’s needles are relatively uniform in length and have a bluish-green color.
The tree’s cones are 3-6 inches (7.5-15 cm) long and cylindrical, with a greenish-brown color and resinous scales. The cones are often found at the top of the tree and are persistent on the tree for several years.
One distinguishing feature of the Concolor fir is its bark, which is grayish-brown and smooth with resin blisters that produce a fragrant, sticky sap. The tree’s buds are also distinctive, with a brownish-red color and a pointed shape.
Overall, the Concolor fir is a beautiful and popular tree that is prized for its ornamental value and its use as a Christmas tree. Its unique bluish-green needles and symmetrical shape make it a favorite of many landscapers and holiday decorators. The tree is also valued for its wood, which is used for lumber, paper, and other products.
