Loblolly Pine

Arbor Walk #126, TreeKeeper ID #6651

The Loblolly Pine is an iconic tree in the Southeastern United States, dominating the southern pine forests and being grown for lumber in plantations in the region. It is tall, skinny in shape, and a vigorous grower. This species was considered culturally important enough to be taken into space as seeds along with four other species in Apollo 14 and grown as “moon trees” back on Earth.

However, the loblolly pine was not always the dominant tree in the South. The longleaf pine forests reigned until European settlement and regular fire management allowed the loblolly to survive past its role as a pioneer tree species. Research has shown that loblolly pine forests and woodlands may become converted into denser, shadier mixed hardwood stands without consistent fire management.

Common Name(s)Loblolly Pine
Latin NamePinus taeda
Indigenous Name(s)
Cultivar/Variety
Commercial Name
Global Distribution
Where to find Arbor Walk #126 on WashU campus
Our Loblolly Pine in space
GPS Coordinates

N/A

Percent Concrete

N/A

Distance to Buildings
YearClose Building #1Close Building #2Close Building #3
Distance to Other Species
YearClose Species #1Close Species # 2Close Species # 3
Our Loblolly Pine through time
Standard Measurements
YearHeight (m)DBH (cm)Crown Diameter N-S (m)Crown Diameter E-W (m)Average Crown Diameter (m)
20235.8102.231.761.995
Nests and Pests
YearDescription
2023N/A
How to identify a Loblolly Pine
Leaf Identification

The Loblolly Pine is an evergreen meaning the leaves stay on all year long. Like all pines (Pinus), the leaves are acicular (needle-like). Each leaf is usually light green and 6″ to 9″ long. There are typically three leaves in each fascicle (bundle).

Twig and Bud Identification

The Loblolly Pine’s twigs are typically orange brown and stout. The buds are ovoid-shaped and reddish-brown with scales.

Bark Identification

The bark of the Loblolly Pine change with age. Young trees are red-brown and have dark gray scales. As it ages, it forms ridges and furrow with rounded plates. Very old trees develop red-brown, flat plates.

Cone Identification

The mature cone of the Loblolly Pine is stalkless and reddish-brown. It is ovoid- to cylindrical-shaped and 3″ to 6″ long. The staminate cones are very long and cylindrical. They are also red to bright yellow and cluster at branch tips. The ovulate cones are yellow to purple.

Relationship of Pinus taeda to other species in the arboretum
Additional resources on the Loblolly Pine