About Loblolly Pine Trees. Comments: Loblolly Pine is considered to be in the group of southern yellow pines, and shares many characteristics with other species of this group (Longleaf, Shortleaf, and Slash Pine) such as being: hard, dense, and possessing an excellent strength-to-weight ratio. Loblolly pine (Pinus taeda), also called Arkansas pine, North Carolina pine, and oldfield pine, is the most commercially important forest species in the southern United States, where it is dominant on about 11.7 million ha (29 million acres) and makes up over one-half of the standing pine volume. loblolly pine This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. The straight trunk can grow 2-3 feet thick. Gordon Langdon. Sometimes called the Arkansas pine or North Carolina pine, the loblolly pine (Pinus taeda) is extremely important to the timber industry in the southern United States. Pinus taeda L.. Loblolly Pine. Pinaceae -- Pine family. Loblolly Pine is an evergreen gymnosperm tree that may grow 60 to 90 feet tall. James B. Baker and 0. Loblolly Pine Distribution. Loblolly Pine is a Southern U.S. commercial softwood tree species grown primarily in Georgia and South Carolina. Loblolly Pine is adaptable to many types of soil and growing conditions and as such is planted throughout the Southern … It is loosely pyramidal in youth and develops a dense oval crown at maturity as it loses its lower branches.