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CEGL000711 Juniperus monosperma / Bouteloua hirsuta Open Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: One-seed Juniper / Hairy Grama Open Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This is a major association of the Oscura and San Andres mountains in New Mexico. It is also known northward in the Los Pinos Mountains of the Sevilleta National Wildlife Refuge and is reported from Colorado. This association is often found on gentle hillslopes, either on toeslopes or the dipslope, and occasionally on scarp slopes. Elevations are low to moderate (1350-2100 m [4500-7000 feet]) with relatively cool aspects. Soils are most commonly moderately developed Alfisols (forest/woodland soils) or Mollisols (grassland soils) derived from limestone or calcitic sandstone. The soils are loamy or clay loams overall, but tend to have significant amounts of gravel cobbles, particularly at the surface (25-50%). They tend to be relatively shallow, as shallow as 15 cm to a lithic contact and commonly under a meter. Hence, soils of this type tend to be drier than in other associations. Calcium carbonate accumulations or caliche layers are usually present (but not always) in the lower horizons. Bouteloua hirsuta is the dominant grass of this juniper savanna and is usually well-represented to abundant. Juniperus monosperma forms an open canopy with intervening grassy areas. Juniperus monosperma reproduction is common. Pinus edulis, when present, is widely scattered. Bouteloua gracilis, Bouteloua eriopoda, Lycurus setosus, and Bouteloua curtipendula are other common grasses of the openings with the cool-season grass Koeleria macrantha under the trees. This is a distinctly grassy type both in cover and species richness (23 grass species recorded). Shrubs are sporadic in species composition and usually poorly represented in cover. The most common are Nolina microcarpa, Yucca elata, Dalea formosa, Gutierrezia sarothrae, Cylindropuntia imbricata, and Opuntia phaeacantha. Dasylirion wheeleri is occasionally conspicuous. A wide variety of forbs are recorded for the type (60+), but they are very low in cover and not consistently represented. Melampodium leucanthum is the most constant forb associate.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Evidence of past fire is usually present in stands of this association. Adjacent swales and drainages may support ~Juniperus monosperma / Bouteloua gracilis Open Woodland (CEGL000710)$$, other more mesic savanna types, or montane shrublands. This association is included in the Juniperus monosperma/Bouteloua spp. type of Dick- Peddie (1993).
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 is a major association of the Oscura and San Andres mountains in New Mexico. It is also known northward in the Los Pinos Mountains of the Sevilleta National Wildlife Refuge and is reported from Colorado (Muldavin et al. 2000b). It may also be found in Oklahoma and Texas.
Nations: US
States/Provinces: CO, NM, OK?, TX?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686763
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
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.2 Two-needle Pinyon - One-seed Juniper Southern Rocky Mountain Woodland Macrogroup | M897 | 1.B.2.Nc.2 |
| Group | 1.B.2.Nc.2.b One-seed Juniper Open Woodland Group | G252 | 1.B.2.Nc.2.b |
| Alliance | A3575 One-seed Juniper Wooded Grassland Alliance | A3575 | 1.B.2.Nc.2.b |
| Association | CEGL000711 One-seed Juniper / Hairy Grama Open Woodland | CEGL000711 | 1.B.2.Nc.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Juniperus monosperma / Bouteloua hirsuta PA (Muldavin and Mehlhop 1992)
= Juniperus monosperma / Bouteloua hirsuta Plant Association (Muldavin et al. 1998d)
< Juniperus monosperma/Bouteloua spp. Vegetation Type (Dick-Peddie 1993)
= Oneseed Juniper/Hairy Grama PA (Muldavin et al. 2000b) [(Juniperus monosperma/Bouteloua hirsuta; JUNMON/BOUHIR)]
= Juniperus monosperma / Bouteloua hirsuta Plant Association (Muldavin et al. 1998d)
< Juniperus monosperma/Bouteloua spp. Vegetation Type (Dick-Peddie 1993)
= Oneseed Juniper/Hairy Grama PA (Muldavin et al. 2000b) [(Juniperus monosperma/Bouteloua hirsuta; JUNMON/BOUHIR)]
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- CNHP [Colorado Natural Heritage Program]. 2006-2017. Tracked natural plant communities. Colorado Natural Heritage Program, Colorado State University, Fort Collins. [https://cnhp.colostate.edu/ourdata/trackinglist/plant_communities/]
- Dick-Peddie, W. A. 1993. New Mexico vegetation: Past, present, and future. University of New Mexico Press, Albuquerque. 244 pp.
- Harlan, J. R. 1957. Grasslands of Oklahoma. Oklahoma State University, Stillwater.
- Hoagland, B. 2000. The vegetation of Oklahoma: A classification for landscape mapping and conservation planning. The Southwestern Naturalist 45(4):385-420.
- Muldavin, E., G. Shore, K. Taugher, and B. Milne. 1998d. A vegetation map classification and map for the Sevilleta National Wildlife Refuge, New Mexico. Final report submitted to USDI, U.S. Fish and Wildlife Service, Sevilleta National Wildlife Refuge, Socorro, NM, by the New Mexico Natural Heritage Program, University of New Mexico, Albuquerque. 73 pp. + appendices.
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- Muldavin, E., and P. Mehlhop. 1992. A preliminary classification and test vegetation map for White Sands Missile Range and San Andreas National Wildlife Refuge, New Mexico. University of New Mexico, New Mexico Natural Heritage Program.
- Rogers, C. M. 1949. The vegetation of the Mesa de Maya region of Colorado, New Mexico, and Oklahoma. Unpublished Ph.D. dissertation, University of Michigan, Ann Arbor.
- Rogers, C. M. 1953. The vegetation of the Mesa de Maya region of Colorado, New Mexico, and Oklahoma. Lloydia 16(4):257-290.
- Rogers, C. M. 1954. Some botanical studies in the Black Mesa region of Oklahoma. Rhodora 56(670):205-212.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.