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CEGL002359 Celtis laevigata var. reticulata - Quercus gambelii - Cercis orbiculata Slickrock Canyon Spring & Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Netleaf Hackberry - Gambel Oak - California Redbud Slickrock Canyon Spring & Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This shrubland and low bosque association is known from the warm deserts of Mojave and Colorado in southeastern Utah and northern Arizona. This association is characterized by typically 2- to 5-m tall Celtis laevigata var. reticulata, Cercis orbiculata, and/or Quercus gambelii shrubs or small trees with 3-90% cover, with very little herbaceous understory. The tree layer is moderately diverse and may include Acer negundo, Juniperus osteosperma, Pinus edulis, Populus fremontii, and/or Populus tremuloides. The shrub layer has moderate to high species diversity, but in some cases may be dominated by a single species, and provides low to moderate cover. Other shrubs commonly to occasionally present include Amelanchier utahensis, Fraxinus anomala, Mahonia fremontii, Rhus trilobata, and Salix exigua. The herbaceous layer is diverse and provides low to moderate cover. These wet shrublands are found on spring-fed slopes, slickrock canyon bottoms, intermittently flooded washes, at the base of cliffs, in alcoves of canyons, and terraces on flat to 30-60° slopes at elevations ranging from 1125 to 2409 m. Stands may be oriented to all aspects. Soils are rapidly drained sand and sandy loam. They are often above and isolated from a riparian zone, or may merge with riparian vegetation along perennial streams.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is largely known and described from National Park Service inventory efforts in the Colorado Plateau. It was previously poorly documented and named Celtis laevigata var. reticulata Slickrock Canyon Riparian Woodland. It has now been renamed and former Cercis orbiculata Seep Shrubland [Park Special] (CEPS009682) (based on one plot in Capitol Reef NP and another from Grand Canyon NP) has been merged into this association. In addition, several plots from classification and data from John Spence, Ph.D., Chief Scientist and Terrestrial Natural Resources Branch Chief, Science & Resource Management, Glen Canyon National Recreation Area (Spence 2008) are included in this concept.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This shrub or low bosque community is characterized by typically 2- to 5-m tall Celtis laevigata var. reticulata, Cercis orbiculata, and/or Quercus gambelii shrubs or small trees with 3-90% cover. The canopy tree layer is moderately diverse, provides sparse to moderate cover, and includes Acer negundo, Juniperus osteosperma, Pinus edulis, Populus fremontii, Populus tremuloides, Salix gooddingii, and several other tree species occasionally present. The shrub layer has moderate to high species diversity, but is variable in composition and provides low to moderate cover. Tall shrubs commonly to occasionally present include Amelanchier utahensis, Fraxinus anomala, Mahonia fremontii, and Salix exigua. Common short and dwarf-shrubs include Atriplex canescens, Artemisia filifolia, Baccharis salicina, Ephedra cutleri, Ephedra viridis, Ericameria nauseosa, Opuntia polyacantha, Purshia stansburiana, Rhus trilobata, Rosa woodsii, Symphoricarpos longiflorus, and Toxicodendron rydbergii. The herbaceous layer is diverse in terms of species composition and provides low to moderate cover. Graminoids commonly present in the community include Achnatherum hymenoides, Poa fendleriana, and Vulpia octoflora. Forbs often present include Ambrosia acanthicarpa, Amsonia tomentosa, Artemisia ludoviciana, Castilleja linariifolia, Heterotheca villosa, Lepidium montanum, Penstemon ambiguus, Solidago canadensis, and Stephanomeria pauciflora,. The vine Clematis ligusticifolia is often present and typically provides sparse cover. Phragmites australis, when present, may have up to 40% cover, In disturbed stands, several exotic species may be present, including Tamarix chinensis, Salsola tragus, and Bromus tectorum.
Dynamics: No Data Available
Environmental Description: This wet shrubland to low bosque association occurs on flat to steep canyon sides and slickrock canyon bottoms, intermittently flooded drainage channels, and terraces on flat to 30-60° slopes at elevations ranging from 1125 to 2409 m. Sites are gentle to steep slopes (1-30°), and are oriented to all aspects. The unvegetated surface has low to high exposure of bedrock, sand, and bare soil. The cover by litter is sparse to low. Parent materials are Navajo sandstone. Soils are rapidly drained and texturally are sand and sandy loam.
Geographic Range: This Colorado Plateau shrubland association is known from Glen Canyon National Recreation Area, and Capitol Reef and Grand Canyon national parks in southern Utah and northern Arizona.
Nations: US
States/Provinces: AZ, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.769486
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nc Southwestern North American Warm Desert Freshwater Marsh & Bosque Division | D032 | 2.C.4.Nc |
| Macrogroup | 2.C.4.Nc.1 Warm Desert Lowland Freshwater Marsh, Wet Meadow & Shrubland Macrogroup | M076 | 2.C.4.Nc.1 |
| Group | 2.C.4.Nc.1.b Honey Mesquite - Velvet Mesquite - False Willow species North American Warm Desert Riparian Low Bosque & Shrubland Group | G533 | 2.C.4.Nc.1.b |
| Alliance | A1033 Sugarberry - Skunkbush Sumac Wet Shrubland Alliance | A1033 | 2.C.4.Nc.1.b |
| Association | CEGL002359 Netleaf Hackberry - Gambel Oak - California Redbud Slickrock Canyon Spring & Riparian Woodland | CEGL002359 | 2.C.4.Nc.1.b |
Concept Lineage: Upgraded to Standard during screening.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Celtis laevigata var. reticulata Slickrock Canyon Woodland [Provisional] (Clark et al. 2009)
- Clark, D., M. Dela Cruz, T. Clark, J. Coles, S. Topp, A. Evenden, A. Wight, G. Wakefield, and J. Von Loh. 2009. Vegetation classification and mapping project report, Capitol Reef National Park. Natural Resource Report NPS/NCPN/NRTR--2009/187. National Park Service, Fort Collins, CO. 882 pp.
- Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
- Reid, M. S., and M. E. Hall. 2010. Vegetation classification of Grand Canyon National Park. Draft report submitted to National Park Service, Fort Collins, CO.
- Romme, W. H., K. D. Heil, J. M. Porter, and R. Fleming. 1993. Plant communities of Capitol Reef National Park, Utah. USDI National Park Service, Technical Report NPS/NAUCARE/NRTER-93/02. Cooperative Park Studies Unit, Northern Arizona University. 37 pp.
- Tendick, A., J. Spence, M. Reid, K. Shulz, G. Kittel, K. Green, A. Wight, and G. Wakefield. 2017. Vegetation classification and mapping project report, Glen Canyon National Recreation Area and Rainbow Bridge National Monument. Natural Resource Report NPS/NCPN/NRR—2017/1500. National Park Service, Fort Collins, CO. 1464 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.