Print Report
CEGL005612 Purshia tridentata / Achnatherum thurberianum Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Antelope Bitterbrush / Thurber''s Needlegrass Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: Purshia tridentata forms an open, medium-tall shrub canopy in this shrubland association. Other shrub species are common and often include Artemisia tridentata and Chrysothamnus viscidiflorus. Achnatherum thurberianum is characteristic of the plant community and is usually abundant in the understory. Elymus elymoides and Poa secunda are also common to well-represented, occasionally becoming more locally abundant than Achnatherum thurberianum. Bromus tectorum is often present and typically occurs at low to moderate cover. Gayophytum spp. regularly occur as associated forb species. These shrublands may occur over a broad range of landforms and microhabitats. Soils are variable and range from silt loams to poorly developed, rocky soils.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This plant community description is based on data from Craters of the Moon (Bell et al. 2009) and on related plant communities that have been previously described. The description provided herein may vary slightly from similar plant communities found elsewhere due to the local scale at which data were collected. Additional global information will be added as it becomes available.
This association is uncommon at Craters of the Moon National Monument and Preserve. Due to the limited spatial extent of occurrence and associated low sample size, the classification of this plant community is considered provisional. Consequently, the characteristic species list for this plant community at Craters of the Moon is also limited.
This association is uncommon at Craters of the Moon National Monument and Preserve. Due to the limited spatial extent of occurrence and associated low sample size, the classification of this plant community is considered provisional. Consequently, the characteristic species list for this plant community at Craters of the Moon is also limited.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: No Data Available
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: The core range of ~Purshia tridentata - Artemisia tridentata Mesic Steppe & Shrubland Alliance (A3179)$$ is the Columbia Basin and Plateau, Owyhee Uplands, Snake River Plains, and the Colorado Rockies. The global range of this association is unknown, but likely occurs sporadically within the range of the greater alliance.
Nations: US
States/Provinces: ID
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.948029
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 3 Desert & Semi-Desert Class | C03 | 3 |
| Subclass | 3.B Cool Semi-Desert Scrub & Grassland Subclass | S11 | 3.B |
| Formation | 3.B.1 Cool Semi-Desert Scrub & Grassland Formation | F033 | 3.B.1 |
| Division | 3.B.1.Ne Western North American Cool Semi-Desert Scrub & Grassland Division | D040 | 3.B.1.Ne |
| Macrogroup | 3.B.1.Ne.3 Big Sagebrush - Threetip Sagebrush - Antelope Bitterbrush Steppe & Shrubland Macrogroup | M169 | 3.B.1.Ne.3 |
| Group | 3.B.1.Ne.3.b Basin Big Sagebrush - Threetip Sagebrush - Antelope Bitterbrush Big Sagebrush Steppe & Shrubland Group | G302 | 3.B.1.Ne.3.b |
| Alliance | A3179 Antelope Bitterbrush - Big Sagebrush Mesic Steppe & Shrubland Alliance | A3179 | 3.B.1.Ne.3.b |
| Association | CEGL005612 Antelope Bitterbrush / Thurber''s Needlegrass Shrubland | CEGL005612 | 3.B.1.Ne.3.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Antelope Bitterbrush / Thurber''s Needlegrass Shrubland (Purshia tridentata / Achnatherum thurberianum Shrubland) (Bell et al. 2009)
- Bell, J., D. Cogan, J. Erixson, and J. Von Loh. 2009. Vegetation inventory project report, Craters of the Moon National Monument and Preserve. Natural Resource Technical Report NPS/UCBN/NRTR-2009/277. National Park Service, Fort Collins, CO. 358 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.