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Pinus coulteri

Pinus coulteri D. Don  
Family: Pinaceae
Coulter's Pine
Pinus coulteri image
Frank Reichenbacher
  • FNA
  • Resources
Robert Kral from Flora of North America (vol. 2)
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 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. Seeds obovoid; body 15--22mm, dark brown; wing to 25mm. 2 n =24.

Dry rocky slopes, flats, ridges, and chaparral, transitional to oak-pine woodland; 300--2100m; Calif.; Mexico in Baja California.

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

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Open Interactive Map
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University of Florida Herbarium
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Genevieve J Kline
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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