Print Report
CEGL001022 Cercocarpus ledifolius / Artemisia tridentata ssp. vaseyana Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Curl-leaf Mountain-mahogany / Mountain Big Sagebrush Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is documented in southeastern Oregon and southern Utah and possibly occurs in the Owyhee Uplands of Idaho, in scattered mountain ranges in the northern Great Basin region of Nevada and California, and the Colorado Plateau of western Colorado. Sites are well-drained loams or loamy sands over basalt, sandstone or rhyolite. Elevations range from 1600-1950 m (5250-6400 feet) in Oregon and around 2750 m (9025 feet) in Utah and Colorado. Aspects are variable, with slopes ranging from 0-60%. The vegetation is variable in its appearance. The canopy may be open to moderately closed, with a sparse to dense shrub understory. The canopy typically is dominated by Cercocarpus ledifolius var. ledifolius, which averages 50% cover but may have as much as 80% cover or as little as 20%. Common shrubs include Artemisia tridentata ssp. vaseyana, Amelanchier alnifolia, Cercocarpus montanus, Paxistima myrsinites, Ericameria nauseosa, Symphoricarpos oreophilus, and Chrysothamnus viscidiflorus. Elymus elymoides and Achnatherum lemmonii are the most common grasses, but Festuca idahoensis, Poa fendleriana, Pseudoroegneria spicata, and Poa secunda may also be present. Stands may have emergent trees of Pseudotsuga menziesii that range in height from 15-20 m tall and provide less than 5% cover.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Dealy (1975) divided this type into several subtypes, which were lumped in the regional classification: Cercocarpus ledifolius / Artemisia tridentata / Festuca idahoensis, Cercocarpus ledifolius / Artemisia tridentata / Pseudoroegneria spicata, and Cercocarpus ledifolius / Artemisia tridentata / Poa ampla.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is variable in its appearance. The canopy may be open to moderately closed, with a sparse to dense shrub understory. The canopy typically is dominated by Cercocarpus ledifolius var. ledifolius, which averages 50% cover but may have as much as 80% cover or as little as 20%. Common shrubs include Artemisia tridentata ssp. vaseyana or (less commonly) Artemisia tridentata ssp. wyomingensis, Amelanchier alnifolia, Cercocarpus montanus, Paxistima myrsinites, Ericameria nauseosa (= Chrysothamnus nauseosus), Symphoricarpos oreophilus, and Chrysothamnus viscidiflorus. Elymus elymoides (= Sitanion hystrix) and Achnatherum lemmonii (= Stipa lemmonii) are the most common grasses, but Festuca idahoensis, Poa fendleriana, Pseudoroegneria spicata, and Poa secunda may also be present. Stands may have emergent trees of Pseudotsuga menziesii that range in height from 15-20 m tall and provide less than 5% cover.
Dynamics: Sampled stands tend to be mature, with arboreal forms of Cercocarpus ledifolius. Younger stands may take the form of a dense mountain shrubland with a mixed canopy of sagebrush and mountain-mahogany. This is one of the drier Cercocarpus ledifolius woodlands.
Environmental Description: This association is documented in southeastern Oregon and southern Utah and possibly occurs in the Owyhee Uplands of Idaho, in scattered mountain ranges in the northern Great Basin region of Nevada and California, and the Colorado Plateau of western Colorado. Sites are well-drained loams or loamy sands over basalt, sandstone or rhyolite. Elevations range from 1600-1950 m (5250-6400 feet) in Oregon and around 2750 m (9025 feet) in Utah and Colorado. Aspects are variable with slopes ranging from 0-60%.
Geographic Range: This association is possibly widely distributed in the northern Great Basin, Colorado Plateau and the Owyhee Uplands, although currently it is documented only in Oregon, Colorado and southern Utah.
Nations: US
States/Provinces: CA, CO, ID?, NV, OR, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687419
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nc Western North American Pinyon - Juniper Woodland & Scrub Division | D010 | 1.B.2.Nc |
| Macrogroup | 1.B.2.Nc.1 Singleleaf Pinyon - Utah Juniper - Western Juniper Intermountain Woodland Macrogroup | M896 | 1.B.2.Nc.1 |
| Group | 1.B.2.Nc.1.d Curl-leaf Mountain-mahogany Woodland & Scrub Group | G249 | 1.B.2.Nc.1.d |
| Alliance | A0586 Curl-leaf Mountain-mahogany Shrubby Woodland Alliance | A0586 | 1.B.2.Nc.1.d |
| Association | CEGL001022 Curl-leaf Mountain-mahogany / Mountain Big Sagebrush Woodland | CEGL001022 | 1.B.2.Nc.1.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: > Cercocarpus ledifolius / Artemisia tridentata / Festuca idahoensis (Dealy 1975)
> Cercocarpus ledifolius / Artemisia tridentata / Poa ampla (Dealy 1975)
> Cercocarpus ledifolius / Artemisia tridentata / Pseudoroegneria spicata (Dealy 1975)
> Cercocarpus ledifolius / Artemisia tridentata / Poa ampla (Dealy 1975)
> Cercocarpus ledifolius / Artemisia tridentata / Pseudoroegneria spicata (Dealy 1975)
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