[3] U.S. Forest Service surveys found that loblolly pine is the second-most common species of tree in the United States, after red maple.

[2][14] Bark is reddish brown and deeply fissured into irregular, broad, scaly plates on older trees.

In the southern United States, the word is used to mean "a mudhole; a mire," a sense derived from an allusion to the consistency of porridge.

[8] Loblolly pines grow well in acidic clay soil, which is common throughout the South, thus are often found in large stands in rural places.

These are isolated populations on areas of acidic sandy soil, surrounded by alkaline clays that are poor for pine growth.

A study using loblolly pines showed that higher atmospheric carbon dioxide levels may help the trees to endure ice storms better.

[20] The famous "Eisenhower Tree" on the 17th hole of Augusta National Golf Club was a loblolly pine.

U.S. President Dwight D. Eisenhower, an Augusta National member, hit the tree so many times that at a 1956 club meeting, he proposed that it be cut down.

Not wanting to offend the President, the club's chairman, Clifford Roberts, immediately adjourned the meeting rather than reject the request outright.

[21] The "Morris Pine" is located in southeastern Arkansas; it is over 300 years old with a diameter of 142 cm (56 in) and a height of 35.7 m (117 ft).

[11] The loblolly pine genome is made up of 22.18 billion base pairs, which is more than seven times that of humans.

Loblolly pine, like most gymnosperms, exhibits high levels of inbreeding depression, especially in the embryonic stage.