Biology:Willamette Valley Ponderosa Pine
| Willamette Valley Ponderosa Pine | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Division: | |
| Class: | |
| Order: | |
| Family: | |
| Genus: | |
| Subgenus: | Pinus
|
| Species: | |
| Subspecies: | P. p. var. willamettensis
|
| Trinomial name | |
| Pinus ponderosa var. willamettensis | |
The Willamette Valley Ponderosa Pine is a variant of the Ponderosa Pine 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 variant's 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
- ↑ 1.0 1.1 1.2 1.3 Ryan, Catherine (March 28, 2012). "Loggers Give Unique Oregon Ponderosa Pine a Lifeline". High Country News. http://www.hcn.org/issues/44.5/loggers-give-unique-oregon-ponderosa-pine-a-lifeline.
External links
- The Nature of Cedar Mill: Willamette Valley Ponderosa Pine
- Ponderosa Returns to the Willamette Valley
- Bark Beetles and Willamette Valley Ponderosa Pine: Populations, Geographical Distribution and Management Recommendations
Wikidata ☰ Q8003324 entry
 |
