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CEGL001754 Bouteloua gracilis - Bouteloua curtipendula Grassland

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Blue Grama - Sideoats Grama Grassland

Colloquial Name: Blue Grama - Sideoats Grama Shortgrass Prairie

Hierarchy Level:  Association

Type Concept: This grassland association is currently described from Washita Battlefield National Historic Site in Oklahoma. It is also reported from Colorado and New Mexico and possibly Texas. More survey and classification work are needed to fully characterize this type. This community occurs on convex upland ridge crests in sandy loam soils derived from sandy shale bedrock, as well as on shale outcrop mounds. These habitats are better drained then sandy loam on sideslopes, and retain moisture better than the loamy sands in adjacent areas. The shale mounds host the most diverse representations of this vegetation because, unlike the rounded ridgetops, these mounds were not used agriculturally. Restoration management has included prescribed burning. This vegetation is generally below a meter tall and cover varies from about 60% on the rounded ridges to only 30% on the shale mounds. Bouteloua gracilis dominates in both areas. Bouteloua curtipendula is a codominant to subdominant on the lower-diversity rounded crests, but it becomes sparse upward on the drier, exposed shale mounds. On the rounded crests, the remaining associates are mixed prairie species, such as Aristida purpurea, Schizachyrium scoparium, and Sporobolus spp. On the shale mounds the associates are more typical of rocky prairies, such as Mimosa borealis, Yucca glauca, Paronychia jamesii, and Scutellaria resinosa.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This association needs to be compared with ~Bouteloua curtipendula - Bouteloua (eriopoda, gracilis) Grassland (CEGL002250)$$.

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 is currently described from Washita Battlefield National Historic Site in Oklahoma. It is also reported from Colorado and New Mexico and possibly Texas. More survey work is needed to fully document its global range.

Nations: MX?,US

States/Provinces:  CO, NM, OK, TX?


Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available
Grank: G5

Greasons: No Data Available
Type Name Database Code Classification Code
Class 2 Shrub & Herb Vegetation Class C02 2
Subclass 2.B Temperate & Boreal Grassland & Shrubland Subclass S18 2.B
Formation 2.B.2 Temperate Grassland & Shrubland Formation F012 2.B.2
Division 2.B.2.Nb Central North American Grassland & Shrubland Division D023 2.B.2.Nb
Macrogroup 2.B.2.Nb.3 Blue Grama - Buffalograss Shortgrass Prairie Macrogroup M053 2.B.2.Nb.3
Group 2.B.2.Nb.3.a Blue Grama - Buffalograss - James'' Galleta Shortgrass Prairie Group G144 2.B.2.Nb.3.a
Alliance A4001 Blue Grama - Hairy Grama - Sideoats Grama Shortgrass Prairie Alliance A4001 2.B.2.Nb.3.a
Association CEGL001754 Blue Grama - Sideoats Grama Grassland CEGL001754 2.B.2.Nb.3.a
Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: No Data Available
Concept Author(s): Great Plains Program

Author of Description: R. Sanders

Acknowledgements: No Data Available

Version Date: 07-30-10
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