Print Report
CEGL005011 Gutierrezia sarothrae - Yucca glauca Dwarf-shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Broom Snakeweed - Soapweed Yucca Dwarf-shrubland
Colloquial Name: Snakeweed - Yucca Dwarf-shrubland
Hierarchy Level: Association
Type Concept: This association has been identified in the northern panhandle of Texas and in Oklahoma but is likely present elsewhere in the southwestern Great Plains. It occurs on shallow or gravelly, usually calcareous soils on dry upland sites. There is a moderate canopy of dwarf-shrubs dominated by Gutierrezia sarothrae, with Yucca glauca present but not abundant. Opuntia spp. are often present, as well, and tend to increase with disturbance such as grazing. Herbaceous cover is moderate. Aristida purpurea, Bouteloua curtipendula, and Sporobolus cryptandrus are the most common herbaceous species.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type may be representative of degraded grassland conditions and could be considered ruderal. It''s placement I the hierarchy needs review.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This community is dominated by Gutierrezia sarothrae, with Yucca glauca being the second most common species. Opuntia macrorhiza seems to be increasing on many areas where this community exists. There are several species of grass present, but the grass is somewhat sparse and does not seem to be on the increase. The most common grass species are Bouteloua gracilis, Bouteloua curtipendula, and Aristida purpurea. There are several forb species present typified by Eriogonum longifolium, Ambrosia psilostachya, Mentzelia nuda, Chaetopappa ericoides (= Leucelene ericoides), Calylophus serrulatus, and Machaeranthera pinnatifida (= Haplopappus spinulosus). Occasional plants of Mimosa borealis and Dalea formosa may occur locally.
Dynamics: No Data Available
Environmental Description: This community occurs on moderately coarse- to medium-textured shallow or gravelly soils on ridges and moderately sloping uplands. Infiltration is moderately rapid and runoff is slight. The soils are outwash deposits that contain fairly high amounts of small to moderate-sized gravel or caliche pebbles. These soils are calcareous and tend to be somewhat droughty in nature.
Geographic Range: This association is known from the northern panhandle of Texas and from Oklahoma, but is likely present elsewhere in the southwestern Great Plains.
Nations: US
States/Provinces: OK, TX
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.788017
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.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Nb Central North American Grassland & Shrubland Division | D023 | 2.B.2.Nb |
| Macrogroup | 2.B.2.Nb.3 Blue Grama - Buffalograss Shortgrass Prairie Macrogroup | M053 | 2.B.2.Nb.3 |
| Group | 2.B.2.Nb.3.a Blue Grama - Buffalograss - James'' Galleta Shortgrass Prairie Group | G144 | 2.B.2.Nb.3.a |
| Alliance | A4001 Blue Grama - Hairy Grama - Sideoats Grama Shortgrass Prairie Alliance | A4001 | 2.B.2.Nb.3.a |
| Association | CEGL005011 Broom Snakeweed - Soapweed Yucca Dwarf-shrubland | CEGL005011 | 2.B.2.Nb.3.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Fenton, K., J. R. Bell, and D. Wegner. 2007. Lake Meredith National Recreation Area, Alibates Flint Quarries National Monument, Texas. Technical Memorandum No. 86-68260-07-01. Bureau of Reclamation, Denver, CO.
- Midwestern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Minneapolis, MN.