Print Report

CEGL005609 Pseudoroegneria spicata - Crepis acuminata Grassland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Bluebunch Wheatgrass - Tapertip Hawk''s-beard Grassland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: Pseudoroegneria spicata dominates or codominates this herbaceous association; Poa secunda is usually present with low to moderate cover, and Crepis acuminata is a characteristic forb, but it usually occurs with low cover. Festuca idahoensis may be absent or present with very low cover. Chrysothamnus viscidiflorus and Artemisia tridentata are the only shrub species that occur with regularity but tend to occur sporadically and contribute very little cover to the plant community. Sites suitable for this vegetation type may include ridges and slopes, alluvial fans, scree slopes, sloped rocky cliff faces, and bedrock outcrops of any aspect, although southerly and westerly aspects are most common in the northwestern part of the geographic range. This association can occur over a very broad elevational range. Stands grow on well-drained, often shallow, and frequently gravelly or rocky soils generally of loam, clay loam, silt loam, or sandy loam textural classes.

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.

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: This grassland association likely occurs in the intermountain northwestern U.S. and adjacent Canada, and extends east into the Rocky Mountains from northern Colorado to northern Montana and east on to the northwestern Great Plains.

Nations: US

States/Provinces:  CO, ID, MT




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: GNR

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Bluebunch Wheatgrass / Tapertip Hawksbeard Herbaceous Vegetation (Pseudoroegneria spicata / Crepis acuminata Herbaceous Vegetation) (Bell et al. 2009)

Concept Author(s): Bell et al. (2009)

Author of Description: Bell et al. (2009)

Acknowledgements: No Data Available

Version Date: 04-04-17

  • 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.