Log In
New Account
Sitemap
Home
Specimen Search
Search Collections
Map Search
Exsiccati Search
Images
Image Library
Search Images
Inventories
State Floras
Kentucky Flora
Dynamic Tools
Dynamic Checklist
Dynamic Key
Pinus monticola
Douglas ex D. Don
Family:
Pinaceae
Western White Pine
[
Pinus strobus var. monticola
,
more
Strobus monticola
(Douglas ex D. Don) Rydb.
]
Walter Fertig
FNA
Resources
Robert Kral from Flora of North America (vol. 2)
Trees to 70m; trunk to 2.5m diam., straight; crown narrowly conic, becoming broad and flattened. Bark gray, distinctly platy, plates scaly. Branches nearly whorled, spreading-ascending; twigs slender, pale red-brown, rusty puberulent and slightly glandular (rarely glabrous), aging purple-brown or gray, smooth. Buds ellipsoid or cylindric, rust-colored, 0.4--0.5cm, slightly resinous. Leaves 5 per fascicle, spreading to ascending, persisting 3--4 years, 4--10cm ยด 0.7--1mm, straight, slightly twisted, pliant, blue-green, abaxial surface without evident stomatal lines, adaxial surfaces with evident stomatal lines, margins finely serrulate, apex broadly to narrowly acute; sheath 1--1.5cm, shed early. Pollen cones ellipsoid, 10--15mm, yellow. Seed cones maturing in 2 years, shedding seeds and falling soon thereafter, clustered, pendent, symmetric, lance-cylindric to ellipsoid-cylindric before opening, broadly lanceoloid to ellipsoid-cylindric when open, 10--25cm, creamy brown to yellowish, without purple or gray tints, resinous, stalks to 2cm; umbo terminal, depressed. Seeds compressed, broadly obovoid-deltoid; body 5--7mm, red-brown; wing 2--2.5cm. 2 n =24.
Montane moist forests, lowland fog forests; 0--3000m; Alta., B.C.; Calif., Idaho, Mont., Nev., Oreg., Wash.
Pinus monticola is the most important western source for matchwood. Its wood lacks the sugary exudates seen in P . lambertiana .
Western white pine ( Pinus monticola ) is the state tree of Idaho.
Open Interactive Map
Miguel Vieira
University of Florida Herbarium
Click to Display
100 Initial Images
- - - - -
View All Images
This project made possible by
National Science Foundation Award 1410069
Powered by
Symbiota
.