The Gymnosperm Database
at the botanical garden in Chapel Hill, NC [C.J. Earle, 2004.10.27].
40 cm (above) and 50 cm (below) dbh; Weymouth Woods, NC [C.J. Earle, 2006.03].
Shortleaf pine, shortstraw pine, southern yellow pine.
This species belongs to subgenus
Loudon. This subsection is comprised largely of species found in the SE US and Caribbean, and includes most of the pines that co-occur with this species in mixed stands (such as
P. elliottii, P. glabra, P. palustris, P. serotina
) are in the same subsection. It hybridizes naturally with
; the hybrids tend to closely resemble
1997). In eastern Kentucky (and perhaps elsewhere, where sympatric),
, producing trees with very small,
-shaped seed cones, and larger seed cones that are intermediate between the normal shape for each species (R. Clark email 2009.12.15).
"Trees to 40 m; trunk to 1.2 m diam., straight; crown rounded to conic. Bark red-brown, scaly-plated, plates with evident resin pockets. Branches spreading-ascending; 2-year-old branchlets slender (ca. 5 mm or less), greenish brown to red-brown, often glaucous, aging red-brown to gray, roughened and cracking below leafy portion. Buds ovoid to cylindric, red-brown, 0.5-0.7(1) cm, resinous. Leaves 2(3) per fascicle, spreading-ascending, persistent 3-5 years, (5)7-11(13) cm x ca. 1 mm, straight, slightly twisted, gray- to yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex abruptly acute; sheath 0.5-1(1.5) cm, base persistent. Pollen cones cylindric, 15-20 mm, yellow- to pale purple-green. Seed cones maturing in 2 years, semipersistent, solitary or clustered, spreading, symmetric, lanceoloid or narrowly ovoid before opening, ovoid-conic when open, 4-6(7) cm, red-brown, aging gray, nearly sessile or on stalks to 1cm, scales lacking contrasting dark border on adaxial surfaces distally; umbo central, with elongate to short, stout, sharp prickle. Seeds ellipsoid; body ca. 6 mm, gray to nearly black; wing 12-16 mm. 2
There are few similar species. The short needles and small cones (often presented in very large cone crops that are retained on the tree for several years) are quite distinctive.
Distribution and Ecology
USA: New York, Pennsylvania, Ohio, Illinois, Arkansas, Missouri, Kentucky, Tennessee, West Virginia, Maryland, Delaware, Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Louisiana, Oklahoma and Texas. Typically in uplands, relatively dry forests at 200 to 610 m elevation; commonly in mixed stands with
). See also
. Hardy to Zone 6 (cold hardiness limit between -23.2°C and -17.8°C) (
Bannister and Neuner 2001
Distribution data from
Diameter 108 cm, height 42 m, crown spread 23 m, located in Myrtle, MS (American Forests 1996). The tallest known one is in the Abrams Creek watershed in Tennessee; it is 45.5 m tall (Blozan 2011). Another tree, nearby in Great Smoky Mountains National Park, was 43.16 m tall in 2004 (Robert Van Pelt e-mail 2004.02.17).
In 2007, the field class of the Dendroecological Fieldweek established a crossdated age of 324 years for tree GMX307, in the Great Smoky Mountains National Park, Tennessee (Pederson 2008). Tree LAW38 with a crossdated age of 314 years, alive when collected in 1980 at Lake Winona Natural Area, Arkansas by D. Stahle and G. Hawks (NCDC 2006). It would be interesting to know if this tree survives.
Highly valued for timber and pulpwood (
I have seen it in the North Carolina sandhills, such as at the
Weymouth Woods Sandhills Nature Preserve
, but it it reportedly quite common in much of its range.
American Forests 1996. The 1996-1997 National Register of Big Trees. Washington, DC: American Forests. This is a dated citation; the big tree register is now
Blozan, Will. 2011.05.14. Abrams Creek, TN- new shortleaf pine and paw-paw record.
, accessed 2011.05.15.
Edwards-Burke, M. A., J. L. Hamrick, and R. A. Price. 1997. Frequency and direction of hybridization in sympatric populations of
American Journal of Botany
Miller, P. 1768.
The Gardener's Dictionary
, ed. 8. London. Pinus no. 12. Available:
, accessed 2011.05.20.
[NCDC 2006] Data accessed at the National Climatic Data Center World Data Center for Paleoclimatology Tree-Ring Data Search page, 2006.09.08. URL:
Pederson, N. 2008. Eastern OlDLIST: A database of maximum tree ages for Eastern North America.
, accessed 2008.12.07.
Burns and Honkala (1990)
Prasad and Iverson 1999
Wagner, D. B., Nance, W. L., Nelson, C. D., Li, T., Patel, R. N. and Govindaraju, D. R. 1991. Taxonomic patterns and inheritance of chloroplast variation in a survey of
Canadian Journal of Forest Research
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Edited by Christopher J. Earle
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