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CEGL005771 Pinus monophylla / Garrya flavescens Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Singleleaf Pinyon / Ashy Silktassel Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This upland woodland association occurs in the Mojave Desert in California. Pinus monophylla is the characteristic and usually dominant or codominant tree in the sparse to open tree canopy (1-26% cover). Juniperus osteosperma may be present to codominant. The open to moderately dense shrub layer is variable, ranging from 14 to 36% cover, and is dominated by Garrya flavescens. The tall shrub/small tree Fraxinus anomala may be present with low cover. Other associated shrubs and succulents may be present. The herbaceous understory is typically sparse. Commonly associated species include Achnatherum parishii, Artemisia ludoviciana, Castilleja linariifolia, Hymenoxys cooperi, Penstemon spp., Poa fendleriana, Phlox stansburyi, and exotic species Bromus rubens, Bromus tectorum, and Erodium cicutarium. Nonvascular plants (lichens and mosses) may be common. Stands occur in cooler, north-facing canyons and upper slopes in the higher desert mountain ranges between 1330 and 2000 m elevation. Sites range from gentle to steep slopes. Soils are rocky and vary from sand to loam and are derived from substrates such as granodiorite, limestone, rhyolite, and sandstone. The ground surface often has high cover of bedrock, boulders and gravel.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This upland woodland association is usually dominated or codominated by characteristic tree Pinus monophylla in the sparse to open tree canopy (1-26% cover) (Evens 2000, Evens et al. 2014). Juniperus osteosperma may be present to codominant. The open to moderately dense shrub layer is variable, ranging from 14 to 36% cover, and is dominated by Garrya flavescens (Evens 2000, Evens et al. 2014). The tall shrub/small tree Fraxinus anomala may be present with low cover. Other associated shrubs and succulents include Artemisia tridentata, Brickellia californica, Cercocarpus intricatus, Echinocereus mojavensis, Ephedra viridis, Eriogonum heermannii, Eriogonum microthecum, Frangula californica ssp. tomentella (= Rhamnus tomentella), Gutierrezia sarothrae, Hymenoxys cooperi, Opuntia phaeacantha, Prunus fasciculata, Purshia stansburiana, Rhamnus ilicifolia, Rhus trilobata, Symphoricarpos longiflorus, and Yucca baccata (Evens 2000, Evens et al. 2014). If present, the herbaceous understory is typically sparse. Commonly associated species include Achnatherum parishii, Artemisia ludoviciana, Elymus elymoides, Castilleja linariifolia, Hymenoxys cooperi, Penstemon eatonii, Penstemon palmeri, Poa fendleriana, Phlox stansburyi, and exotic species Bromus rubens, Bromus tectorum, and Erodium cicutarium. Nonvascular plants (lichens and mosses) may be common (Evens 2000, Evens et al. 2014).
Dynamics: No Data Available
Environmental Description: This upland woodland association occurs in the Mojave Desert in California. Stands occur in cooler, north-facing canyons and upper slopes in the higher desert mountain ranges between 1330 and 2000 m elevation (Evens 2000, Evens et al. 2014). Sites range from gentle to steep (5 to 30°) slopes (Evens 2000, Evens et al. 2014). Soils are rocky and vary from sand to loam and are derived from substrates such as granodiorite, limestone, rhyolite, and sandstone (Evens 2000, Evens et al. 2014). The ground surface often has high cover of bedrock, boulders and gravel (Evens 2000).
Geographic Range: This upland woodland association occurs in higher elevation ranges in the Mojave Desert in California.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.971754
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.1 Singleleaf Pinyon - Utah Juniper - Western Juniper Intermountain Woodland Macrogroup | M896 | 1.B.2.Nc.1 |
| Group | 1.B.2.Nc.1.c Singleleaf Pinyon - Utah Juniper Woodland Group | G899 | 1.B.2.Nc.1.c |
| Alliance | A2108 Singleleaf Pinyon - Utah Juniper Shrubby Woodland Alliance | A2108 | 1.B.2.Nc.1.c |
| Association | CEGL005771 Singleleaf Pinyon / Ashy Silktassel Woodland | CEGL005771 | 1.B.2.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus monophylla / Garrya flavescens (Sawyer et al. 2009) [87.040.05]
= Pinus monophylla / Garrya flavescens Association (Evens et al. 2014)
= Pinus monophylla / Garrya flavescens Association (Evens et al. 2014)
- Evens, J. M. 2000. Water course vegetation on granite and calcareous substrates in the eastern Mojave Desert, California. Master''s thesis, Humboldt State University, Arcata, CA.
- Evens, J. M., K. Sikes, D. Hastings, and J. Ratchford. 2014. Vegetation alliance descriptions for Lake Mead National Recreation Area, Death Valley National Park and Mojave National Preserve. Unpublished report submitted to USDI National Park Service, Mojave Desert Network Inventory and Monitoring Program. California Native Plant Society, Sacramento, CA.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.