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Pinus albicaulis Engelm.
WHITEBARK PINE
Life   Plantae   Gymnospermae   Pinaceae   Pinus

Pinus albicaulis, Whole tree
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, Whole tree

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Pinus albicaulis, Whole tree
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, Whole tree
Pinus albicaulis, Whole tree
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, Whole tree

Pinus albicaulis, whole tree - general
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, whole tree - general
Pinus albicaulis, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, leaf - showing orientation on twig

Pinus albicaulis, bark - of a large tree
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, bark - of a large tree
Pinus albicaulis, bark - of a medium tree or large branch
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, bark - of a medium tree or large branch

Pinus albicaulis, bark - of a large tree
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, bark - of a large tree
Pinus albicaulis, bark - of a small tree or small branch
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, bark - of a small tree or small branch

Pinus albicaulis, twig - showing attachment of needles
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, twig - showing attachment of needles
Pinus albicaulis, twig - showing attachment of needles
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, twig - showing attachment of needles

Pinus albicaulis, leaf - entire needle
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, leaf - entire needle
Pinus albicaulis, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, leaf - showing orientation on twig

Pinus albicaulis, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, leaf - showing orientation on twig
Pinus albicaulis, leaf - showing orientation on twig
© Copyright Steve Baskauf, 2002-2011 · 4
Pinus albicaulis, leaf - showing orientation on twig

Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma harknessii @ BPI (1)
Aphididae  Cinara ( @ AMNH_PBI (1)

Cinara azteca @ AMNH_PBI (3)
Coniophoraceae  Coniophora byssoidea @ BPI (1)
Corticiaceae  Corticium corruge @ BPI (2)
Cronartiaceae  Cronartium ribicola @ BPI (5)
Dermateaceae  Patinella atro-viridis @ BPI (1)

Patinella atroviridis @ BPI (4)
Helotiaceae  Tympanis pinastri @ BPI (4)

Tympanis pithya @ BPI (2)
Hyaloscyphaceae  Dasyscyphus agassizii @ BPI (1)

Dasyscyphus arida @ BPI (2)

Dasyscyphus calyciformis @ BPI (1)

Dasyscyphus fuscosanguineus @ BPI (1)

Dasyscyphus pini @ BPI (5)

Dasyscyphus serinellus @ BPI (1)

Lachnellula chrysophthalma @ BPI (1)

Lachnellula @ BPI (1)
Hymenochaetaceae  Hymenochaete fimbriata @ BPI (1)

Hymenochaete spreta @ BPI (1)

Hymenochaete tenuis @ BPI (1)
Hysteriaceae  Hysterographium formosum @ BPI (2)
Lachnocladiaceae  Vararia investiens @ BPI (1)
Lasiosphaeriaceae  Lasiosphaeria coulteri @ BPI (1)
Lophiostomataceae  Herpotrichia coulteri @ 744595B (1); 744595A (1)

Herpotrichia nigra @ BPI (1)
Meruliaceae  Merulius molluscus @ BPI (2)

Phlebia albida @ BPI (1)
Miridae  Atractotomus cooperi @ AMNH_PBI (4)

Deraeocapsus fraternus @ AMNH_PBI (2)

Deraeocoris brevis @ AMNH_ENT (1)

Deraeocoris davisi @ AMNH_ENT (4)

Dichaetocoris piceicola @ AMNH_PBI (1); AMNH_ENT (2)

Dichrooscytus convexifrons @ AMNH_PBI (4)

Dichrooscytus rainieri @ AMNH_PBI (1)

Dichrooscytus rostratus @ AMNH_PBI (2)

Lygus rugulipennis @ AMNH_PBI (1)

Lygus striatus @ AMNH_PBI (1)

Pappus crinitus @ AMNH_ENT (3)

Pappus intermedius @ AMNH_ENT (2)

Pappus luridus @ AMNH_ENT (1)

Pappus rolfsi @ AMNH_PBI (7)

Pappus rubripes @ AMNH_PBI (3)

Phytocoris heidemanni @ AMNH_PBI (4)

Pilophorus americanus @ AMNH_PBI (11)

Pilophorus diffusus @ AMNH_PBI (2)

Pinalitus rubrotinctus @ AMNH_ENT (1)

Pinalitus solivagus @ AMNH_ENT (1)

Pinophylus rolfsi @ AMNH_PBI (3)

Platylygus crinitus @ AMNH_PBI (1)

Platylygus rolfsi @ AMNH_PBI (8)
Mycosphaerellaceae  Dothistroma pini @ BPI (1)
Mytilinidiaceae  Mytilinidion gemmigenum @ BPI (1)
Nectriaceae  Nectria episphaeria @ BPI (1)
Odontotremataceae  Odontotrema minus @ BPI (1)
Peniophoraceae  Peniophora crassa @ BPI (2)

Peniophora odorata @ BPI (4)
Polyporaceae  Cryptoporus volvatus @ BPI (1)

Fomes pini @ BPI (3)

Fomes pinicola @ BPI (1)

Lentinus lepideus @ BPI (2)

Polyporus leucospongia @ BPI (1)

Poria cinerascens @ BPI (1)

Poria sitchensis @ BPI (1)

Poria unita @ BPI (1)

Poria xantha @ BPI (1)
Pseudococcidae  Puto pricei @ CSCA_TCN (1)
Pyralidae  Pseudographis intermedia @ BPI (1)
Reduviidae  Pselliopus @ AMNH_PBI (1)

Rhynocoris @ AMNH_PBI (2)
Rhytismataceae  Hypodermella @ BPI (1)

Lophodermium nitens @ 651794B (1); 651794A (1); BPI (6)

Lophodermium pinastri @ BPI (1)

Therrya @ BPI (2)
Stereaceae  Stereum rugisporum @ BPI (3)
_  Grandinia granulosa @ BPI (1)

Hypochnus fumosus @ BPI (1)

Lophodermina nitens @ BPI (1)

Neopeckia coulteri @ BPI (18)

Sclerophoma @ BPI (2)

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FNA | Family List | FNA Vol. 2 | Pinaceae | Pinus

1. Pinus albicaulis Engelmann, Trans. Acad. Sci. St. Louis. 2: 209. 1863.

Whitebark pine, pine à blanche écorce

Apinus albicaulis (Engelmann) Rydberg

Trees to 21m; trunk to 1.5m diam., straight to twisted and contorted; crown conic, becoming rounded to irregularly spreading. Bark pale gray, from distance appearing whitish to light gray and smooth, in age separating into thin plates. Branches spreading to ascending, often persistent to trunk base; twigs stout, pale red-brown, with light brown, often glandular puberulence, somewhat roughened by elevated scars, aging gray to pale gray-brown. Buds ovoid, light red-brown, 0.8--1cm; scale margins entire. Leaves 5 per fascicle, mostly ascending and upcurved, persisting 5--8 years, 3--7cm ´ 1--1.5(--2)mm, mostly connivent, deep yellow-green, abaxial surface less so, adaxial surface conspicuously whitened by stomates, margins rounded, minutely serrulate distally, apex conic-acute; sheath 0.8--1.2cm, shed early. Pollen cones cylindro-ovoid, ca. 10--15mm, scarlet. Seed cones remaining on tree (unless dislodged by animals), not opening naturally but through animal agency, spreading, symmetric, broadly ovoid to depressed-ovoid or nearly globose, 4--8cm, dull gray- to black-purple, sessile to short-stalked; scales thin-based and easily broken off; apophyses much thickened, strongly cross-keeled, tip upcurved, brown; umbo terminal, short, incurved, broadly triangular, tip acute. Seeds obovoid; body 7--11mm, chestnut brown, wingless. 2 n =24.

Thin, rocky, cold soils at or near timberline, montane forests; 1300--3700m; Alta., B.C.; Calif., Idaho, Mont., Nev., Oreg., Wash., Wyo.

Although two reliable dendrologists, G. B. Sudworth (1917) and N. T. Mirov (1967), include Utah in the distribution of Pinus albicaulis , more recent workers have not found it to occur there.

The fresh-cut wood of Pinus albicaulis is sweet-scented. Seeds are dispersed mainly by Clark's nutcracker [ Nucifraga columbiana (Wilson), family Corvidae].

SELECTED REFERENCES

Lanner, R.M. 1982. Adaptations of whitebark pine for seed dispersal by Clark's nutcracker. Canad. J. Forest Res. 12: 391--402.

Updated: 2024-04-13 16:00:10 gmt
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