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Pinus ponderosa / Alnus incana Riparian Woodland | NatureServe Biotics 2019
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Name: Pinus ponderosa / Alnus incana Riparian Woodland Reference: NatureServe Biotics 2019 Description: This coniferous riparian woodland is found along foothill and lower montane canyon bottoms of the southern Rocky Mountains along the Colorado Front Range and may occur in similar habitats in New Mexico and Arizona. Stands occur along rivers and streams on southern aspects that would be too dry for <i>Pinus ponderosa</i>, except for the stream moisture. Sites are flooded for brief periods during the growing season, and the shrubs and trees have access to the water table. Substrates are well-drained, coarse alluvium. Large, mature <i>Pinus ponderosa</i> trees provide an open overstory canopy with a narrow band of <i>Alnus incana ssp. tenuifolia</i> overhanging the generally narrow and steep stream channel. Older <i>Pinus ponderosa</i> trees are usually rooted in well-drained locations at the top of the streambank or farther from the edge of the channel. <i>Betula occidentalis</i> is usually present, as are <i>Prunus virginiana, Salix bebbiana</i>, and <i>Salix ligulifolia</i>. <i>Toxicodendron rydbergii</i> may also be present. The herbaceous undergrowth is usually sparse because of the droughty soils. Diagnostic of this riparian woodland association is the dominance of <i>Pinus ponderosa</i> in the tree layer with a shrub layer dominated by <i>Alnus incana</i> and other mesic shrubs.  Accession Code: urn:lsid:vegbank.org:commConcept:31546-{245ED4E8-FE72-4469-9B62-840C0A72B035} Plot-observations of this Community Concept: 4
	Party Perspective according to: NatureServe (organization) Perspective from: 07-Apr-1998 to: ongoing
	status: accepted Community's Parent: Pinus ponderosa - Juniperus scopulorum - Abies concolor Riparian Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.686681 NatureServe Explorer   Code: CEGL002638   Translated: Ponderosa Pine / Gray Alder Riparian Woodland   Scientific: Pinus ponderosa / Alnus incana Riparian Woodland (convergence) and Synonyms: (similar) CEGL002638 (similar) Pinus ponderosa / Alnus incana Woodland (similar) Pinus ponderosa / Alnus incana Woodland