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big-cone pine, Coulter pine

Habit Trees to 24m; trunk to 1m diam., straight to contorted; crown broad, thin, irregular.
Bark

dark gray-brown to near black, deeply furrowed, with long, scaly, irregularly anastomosing, rounded ridges.

Branches

often ascending;

twigs stout to moderately slender, violet-brown, often glaucous, aging gray-brown, rough.

Buds

ovoid, deep red-brown, 1.5(–3)cm, resinous;

scale margins white-fringed, apex cuspidate.

Leaves

3 per fascicle, slightly spreading, not drooping, mostly ascending in a brush, persisting 3–4 years, 15–30cm × ca. 2mm, slightly curved or straight, twisted, dusty gray-green, all surfaces with pale, fine stomatal lines, margins serrulate, apex abruptly subulate;

sheath 2–4cm, base persistent.

Pollen cones

ovoid to cylindric, to 25mm, light purple-brown, aging orange-brown.

Seed(s)

cones maturing in 2 years, gradually shedding seeds thereafter and moderately persistent, massive, heavy, drooping, asymmetric at base, narrowly ovoid before opening, ovoid-cylindric when open, 20–35cm, pale yellow-brown, resinous, stalks to 3cm;

apophyses transverse-rhombic, strongly and sharply cross-keeled, elongate, curved, continuous with umbos to form long, upcurved claws 2.5–3cm.

2n

=24.

Pinus coulteri

Habitat Dry rocky slopes, flats, ridges, and chaparral, transitional to oak-pine woodland
Elevation 300–2100m (1000–6900ft)
Distribution
from FNA
CA; Mexico in Baja California
[WildflowerSearch map]
[BONAP county map]
Discussion

Pinus coulteri is the heaviest-coned pine; one who seeks its shade should wear a hardhat.

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

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. echinata, P. edulis, P. elliottii, 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
Name authority D. Don: Trans. Linn. Soc. London, Bot. 17: 440. (1836)
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