Print Report

A4395 Juniperus virginiana Woodland Alliance

Type Concept Sentence: This juniper woodland type occurs in the southcentral Great Plains. It occurs naturally in mixedgrass prairies, but is most common in sites that are heavily grazed or lack fire, or in some rocky glade like habitats.


Common (Translated Scientific) Name: Eastern Red-cedar Woodland Alliance

Colloquial Name: Great Plains Red-Cedar Woodland

Hierarchy Level:  Alliance

Type Concept: This juniper woodland type occurs in the southcentral Great Plains. It occurs naturally in mixedgrass prairies but is most common in sites that are heavily grazed or lack fire, or in some rocky glade like habitats. It is dominated by Juniperus virginiana var. virginiana in the canopy and Schizachyrium scoparium and other mixedgrass species in the herb layer. This type is increasing in the Great Plains, encroaching into prairies and altering wildlife habitat, forage, livestock production and water, carbon and nutrient cycles.

Diagnostic Characteristics: Juniper trees are typically 5 m tall and at least 10% canopy.

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type was rare historically but is increasingly common because of lack of fire in the Great Plains region (Wang et al. 2018). Thus, there may be few diagnostic features apart from the dominance by Juniperus virginiana. Early seral stages of this type were once described separately as an association (e.g., CEGL004066. Juniperus virginiana / Schizachyrium scoparium - Bouteloua curtipendula Great Plains Grassland) but are now simply recognized as variants of mixedgrass prairie types.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: This type dominated by Juniperus virginiana var. virginiana in the canopy and Schizachyrium scoparium and other mixedgrass species in the herb layer.

Dynamics:  This type occurs naturally in mixedgrass prairies, typically in areas that are heavily grazed or lack fire, or in some rocky glade like habitats. It is increasing in the Great Plains, encroaching into prairies and altering wildlife habitat, forage, livestock production and water, carbon and nutrient cycles (Wang et al. 2018). A detailed documentation of its expansion in Oklahoma is provided by Wang et al. (2018).

Environmental Description:  These juniper forests tend to occur more frequently in habitats with the following characteristics (in Oklahoma): a) on soils of sand and loam than on clay soils, b) in regions with soil depths > 100 cm depth, and c) on soils characterized by lower available water source (Wang et al. 2018).

Geographic Range: This type occurs throughout the central mixedgrass region of the Great Plains, and into the tallgrass region.

Nations: US

States/Provinces:  IA?, KS, MN?, MO?, NE, OK, SD, TX




Confidence Level: Proposed (Submitted)

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: No Data Available

Concept Author(s): D. Faber-Langendoen and B. Hoagland

Author of Description: No Data Available

Acknowledgements: No Data Available

Version Date: No Data Available

  • Hoagland, B. and D. Faber-Langendoen. 2020. Revisions to Great Plains grassland, shrubland, and woodland vegetation types. Proceedings of the U.S. National Vegetation Classification. USNVC-Proc-XX. February 2020. Ecological Society of America, Washington, DC., USA. xx pp.
  • Wang, J., X. Xiangming, Y. Qin, R.B. Doughty, J. Dong, and Z. Zou. 2018. Characterizing the encroachment of juniper forests into subhumid and semi-arid prairies from 1984 to 2010 using LALSAR and Landsat data. Remote Sensing of Environment 205:166-179.