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Pinus ponderosa / Physocarpus monogynus Forest | NatureServe Biotics 2019
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Name: Pinus ponderosa / Physocarpus monogynus Forest Reference: NatureServe Biotics 2019 Description: This ponderosa pine woodland is found in the Black Hills at 1310 to 1800 m (4300-5900 feet) elevation west to Colorado at 2560 to 2710 m (8400-8880 feet). This montane community is one of the more mesic of the ponderosa pine forests in the Black Hills and southern Rocky Mountains. Stands occur predominantly on north- to northwest-facing aspects but may also occur on eastern and southern aspects. Slopes tend to be moderate to steep but range from (1-49%). Soils are relatively deep, well-drained sandy loams from coarse colluvium. The overstory is dominated by <i>Pinus ponderosa</i> often with an admixture of <i>Pseudotsuga menziesii</i> and sometimes <i>Pinus flexilis</i> depending on seral stage. The canopy can be moderately open to closed. Sufficient light penetrates the canopy to allow the growth of a vigorous shrub layer (20-50% cover). There is a substantial shrub layer that grows to approximately 1 m tall. This stratum is dominated by <i>Physocarpus monogynus</i>. Other shrubs that occur in this community are <i>Acer glabrum, Amelanchier alnifolia, Mahonia repens, Prunus virginiana, Rosa acicularis, Arctostaphylos uva-ursi</i>, and <i>Symphoricarpos albus</i>. In the Rocky Mountains the tree canopy was more open, and <i>Symphoricarpos rotundifolius</i> may be present with up to 20% cover. The herbaceous layer is dominated by forbs and nonvascular plants. <i>Antennaria rosea, Cerastium arvense, Galium boreale, Pulsatilla patens</i>, and mosses and lichens are typically found in this community. Unvegetated surface is common in this association and is composed of needle litter and duff.  Accession Code: urn:lsid:vegbank.org:commConcept:29099-{9AD273B8-82C5-4C5A-AEF9-1B76CAC8FAAA} Plot-observations of this Community Concept: 6
	Party Perspective according to: NatureServe (organization) Perspective from: 26-May-2005 to: ongoing
	status: accepted Community's Parent: Pinus ponderosa Mesic Black Hills Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.687497 NatureServe Explorer   Code: CEGL000190   Translated: Ponderosa Pine / Mountain Ninebark Forest   Common: Ponderosa Pine / Mountain Ninebark Forest   Scientific: Pinus ponderosa / Physocarpus monogynus Forest (convergence) and Synonyms: (similar) CEGL000190 (similar) Pinus ponderosa / Physocarpus monogynus Forest (similar) Pinus ponderosa / Physocarpus monogynus Forest