| Willamette Valley ponderosa pine | |
|---|---|
Scientific classification
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Pinales |
| Family: | Pinaceae |
| Genus: | Pinus |
| Species: |
P. ponderosa |
| Population: | Willamette Valley ponderosa pine |
The Willamette Valley ponderosa pine is a population of the ponderosa pine ( Pinus ponderosa) native to the Willamette Valley in Oregon. It is adapted for Western Oregon's wet winter and dry summer.[ citation needed]
History
The Willamette Valley ponderosa variant only grows on the valley floor, unlike the Douglas-fir, which grows on hillsides, and the wood is softer and easier to mill than the native hardwoods. [1] Because of this, when early settlers used wood from the trees to build homes and cleared land for agriculture, the population was "decimated". [1] Prior to restoration efforts, the pine survived only in scattered stands between Hillsboro and Cottage Grove. [1] The Lewis's woodpecker and the slender-billed nuthatch (a subspecies of the white-breasted nuthatch) nest in the tree and rely on it for food–their populations were reduced along with that of the pine. [1]
References
- ^ a b c d Ryan, Catherine (March 28, 2012). "Loggers Give Unique Oregon Ponderosa Pine a Lifeline". High Country News. Retrieved March 12, 2015.
External links
- The Nature of Cedar Mill: Willamette Valley Ponderosa Pine
- "Ponderosa Returns to the Willamette Valley". OSU Extension Service. Archived from the original on 2 Apr 2015.
- Bark Beetles and Willamette Valley Ponderosa Pine: Populations, Geographical Distribution and Management Recommendations
- Willamette Valley Ponderosa Pine Conservation Association
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