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Pinus ponderosa / Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Woodland | NatureServe Biotics 2019
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Name: Pinus ponderosa / Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Woodland Reference: NatureServe Biotics 2019 Description: These are open, sparse woodlands on isolated sand dunes and sandy flats. The only two known occurrences are from the northern Great Basin, one in Oregon and one in California. They represent isolated <i>Pinus ponderosa</i> forests in sagebrush habitats, which are apparently Pleistocene relicts from a more mesic environment. The canopy is dominated by <i>Pinus ponderosa</i> at fairly low cover (averaging 4% canopy cover), making this a shrubland with scattered trees. On the margins, occasional <i>Juniperus occidentalis</i> individuals represent the only other tree found, and in patches these can be codominant. The majority of the shrub cover is from <i>Artemisia tridentata ssp. wyomingensis</i> and <i>Chrysothamnus viscidiflorus</i>. Dominant grasses are <i>Hesperostipa comata, Achnatherum thurberianum, Achnatherum hymenoides, Poa secunda</i>, and <i>Elymus elymoides</i>. This is the only <i>Pinus ponderosa</i> association with <i>Artemisia tridentata</i> and <i>Hesperostipa comata</i> found on sandy habitats. ~<i>Pinus ponderosa / Artemisia tridentata ssp. vaseyana / Poa nervosa</i> Woodland (CEGL000180)$$ has been described from higher elevations and silty soils.  Accession Code: urn:lsid:vegbank.org:commConcept:29088-{8FB44BE3-E5D9-4EB4-93D5-E957D9EEFA50} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: ongoing
	status: accepted Community's Parent: Pinus ponderosa / Shrub Understory Central Rocky Mountain Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.686747 NatureServe Explorer   Code: CEGL000179   Translated: Ponderosa Pine / Wyoming Big Sagebrush / Needle-and-Thread Woodland   Scientific: Pinus ponderosa / Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Woodland (convergence) and Synonyms: (similar) CEGL000179 (similar) Pinus ponderosa / Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Woodland (similar) Pinus ponderosa / Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Woodland