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Juniperus monosperma / Bouteloua hirsuta Open Woodland | NatureServe Biotics 2019
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Name: Juniperus monosperma / Bouteloua hirsuta Open Woodland Reference: NatureServe Biotics 2019 Description: 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. <i>Bouteloua hirsuta</i> is the dominant grass of this juniper savanna and is usually well-represented to abundant. <i>Juniperus monosperma</i> forms an open canopy with intervening grassy areas. <i>Juniperus monosperma</i> reproduction is common. <i>Pinus edulis</i>, when present, is widely scattered. <i>Bouteloua gracilis, Bouteloua eriopoda, Lycurus setosus</i>, and <i>Bouteloua curtipendula</i> are other common grasses of the openings with the cool-season grass <i>Koeleria macrantha</i> 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 <i>Nolina microcarpa, Yucca elata, Dalea formosa, Gutierrezia sarothrae, Cylindropuntia imbricata</i>, and <i>Opuntia phaeacantha</i>. <i>Dasylirion wheeleri</i> 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. <i>Melampodium leucanthum</i> is the most constant forb associate.  Accession Code: urn:lsid:vegbank.org:commConcept:29620-{BC8DE961-1D0F-44AC-BE94-3EFA8D1BBCF1} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 30-Aug-2012 to: ongoing
	status: accepted Community's Parent: Juniperus monosperma Wooded Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.686763 NatureServe Explorer   Code: CEGL000711   Translated: One-seed Juniper / Hairy Grama Open Woodland   Scientific: Juniperus monosperma / Bouteloua hirsuta Open Woodland (convergence) and Synonyms: (similar) CEGL000711 (similar) Juniperus monosperma / Bouteloua hirsuta Woodland (similar) Juniperus monosperma / Bouteloua hirsuta Woodland