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slash pine

Habit Trees to 30m; trunk to 0.8m diam., straight to contorted; crown conic, becoming rounded or flattened.
Bark

orange- to purple-brown, irregularly furrowed and cross-checked into large, irregularly rectangular, papery-scaly plates.

Branches

spreading to ascending;

twigs stout (to ca. 1cm thick), orange-brown, aging darker brown, rough-scaly.

Buds

cylindric, silvery brown, 1.5–2cm;

scale margins fringed.

Leaves

2 or 3 per fascicle, spreading or ascending, persisting ca. 2 years, 15–20(–23)cm × 1.2–1.5mm, straight, slightly twisted, pliant, yellow- to blue-green, all surfaces with stomatal lines, margins finely serrulate, apex abruptly acute to acuminate;

sheath 1–2cm, base persistent.

Pollen cones

cylindric, 30–40mm, purplish.

Seed(s)

cones maturing in 2 years, falling the year after seed-shed, single or in pairs, symmetric, lance-ovoid before opening, ovoid or ovoid-cylindric when open, (7–)9–18(–20)cm, light chocolate brown, on stalks to 3cm;

apophyses lustrous (as if varnished), slightly raised, strongly cross-keeled;

umbo central, depressed-pyramidal, with short, stout prickle.

Pinus elliottii

Distribution
from FNA
AL; FL; GA; LA; MS; SC [Introduced in subtropical and warm temperate areas worldwide]
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (native only in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Seedlings essentially without grass stage, buds thus scattered on the stem; leaves mostly in 3s, sometimes in 2s on same shoot; resin canals 3-5 per leaf; base of open cone ± truncate.
var. elliottii
1. Seedlings tending toward a grass stage, buds thus crowded on contracted stems; leaves mostly in 2s, sometimes in 3s on same shoot; resin canals 3-9 per leaf; base of open cone rounded.
var. densa
Source FNA vol. 2.
Parent taxa Pinaceae > Pinus
Sibling taxa
P. albicaulis, P. aristata, P. attenuata, P. balfouriana, P. banksiana, P. cembroides, P. clausa, P. contorta, P. coulteri, P. echinata, P. edulis, P. engelmannii, P. flexilis, P. glabra, P. jeffreyi, P. lambertiana, P. leiophylla, P. longaeva, P. monophylla, P. monticola, P. muricata, P. palustris, P. ponderosa, P. pungens, P. quadrifolia, P. radiata, P. resinosa, P. rigida, P. sabiniana, P. serotina, P. strobiformis, P. strobus, P. sylvestris, P. taeda, P. torreyana, P. virginiana, P. washoensis
Subordinate taxa
P. elliottii var. densa, P. elliottii var. elliottii
Synonyms P. heterophylla, P. taeda var. heterophylla
Name authority Engelmann: Trans. Acad. Sci. St. Louis 4: 186, plates 1–3. (1880)
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