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CEGL005984 Salix irrorata - Salix exigua Wet Shrubland

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Dewystem Willow - Narrowleaf Willow Wet Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is widespread and known from mountainous areas of the San Juan River and Rio Grande basins in northern New Mexico. This community type is found in mountainous regions along small perennial or intermittent streams through very narrow valleys and canyons. It occurs at elevations around 2370 m (7750 feet). The stream channel may be cobbly, gravelly, or bedrock-controlled. Depositional features are limited, and alluvial sediments are generally rocky. This community type may occupy the channel itself and is probably temporarily flooded during the year. Soils have no structure and are unconsolidated and non-cohesive (riverwash). These are very well-drained soils that provide for good aeration and rapid movement of water through the profile. During most times of the year, they tend to be moist and wet at shallow depths (within 40 cm). This dense thicket of abundant willows is codominated by Salix irrorata and Salix exigua. Saplings of Populus angustifolia may be present beneath the canopy. Other shrubs include Dasiphora fruticosa ssp. floribunda and Prunus virginiana. The herbaceous undergrowth is variable and moderate in cover; 30 grasses and forbs have been recorded for the type, of which only Agrostis stolonifera, Achillea millefolium, and Symphyotrichum foliaceum are well-represented but not abundant. The community can be flanked by Populus angustifolia and Alnus incana ssp. tenuifolia communities on slightly higher bars. Uplands are dominated by Artemisia tridentata on the flats, pinyon pine-juniper woodlands on dry slopes, or Pinus ponderosa - Juniperus scopulorum - Quercus gambelii woodlands on slightly more mesic slopes.

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 dense thicket of abundant willows is codominated by Salix irrorata and Salix exigua. Saplings of Populus angustifolia may be present beneath the canopy. Other shrubs include Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda) and Prunus virginiana. The herbaceous undergrowth is variable and moderate in cover; 30 grasses and forbs have been recorded for the type, of which only Agrostis stolonifera, Achillea millefolium, and Symphyotrichum foliaceum (= Aster foliaceus) are well-represented but not abundant. The community can be flanked by Populus angustifolia and Alnus incana ssp. tenuifolia communities on slightly higher bars. Uplands are dominated by Artemisia tridentata on the flats, pinyon pine-juniper woodlands on dry slopes, or Pinus ponderosa - Juniperus scopulorum - Quercus gambelii woodlands on slightly more mesic slopes.

Dynamics:  No Data Available
Environmental Description:  This association is widespread and known from mountainous areas of the San Juan River and Rio Grande basins in northern New Mexico. This community type is found in mountainous regions along small perennial or intermittent streams through very narrow valleys and canyons. It occurs at elevations around 2370 m (7750 feet). The stream channel may be cobbly, gravelly, or bedrock-controlled. Depositional features are limited, and alluvial sediments are generally rocky. This community type may occupy the channel itself and is probably temporarily flooded during the year. Soils have no structure and are unconsolidated and non-cohesive (riverwash). These are very well-drained soils that provide for good aeration and rapid movement of water through the profile. During most times of the year, they tend to be moist and wet at shallow depths (within 40 cm).
Geographic Range: This association is widespread and known from mountainous areas of the San Juan River and Rio Grande basins in northern New Mexico.

Nations: US

States/Provinces:  NM


Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available
Grank: G3?

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.Nb Western North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division D031 2.C.4.Nb
Macrogroup 2.C.4.Nb.5 Sitka Alder - Booth''s Willow / Northwest Territory Sedge Montane Marsh, Wet Meadow & Shrubland Macrogroup M893 2.C.4.Nb.5
Group 2.C.4.Nb.5.a Narrowleaf Willow - Hawthorn species - Stretchberry Rocky Mountain-Great Basin Riparian Shrubland Group G526 2.C.4.Nb.5.a
Alliance A3800 Narrowleaf Willow - Dewystem Willow Shrubland Alliance A3800 2.C.4.Nb.5.a
Association CEGL005984 Dewystem Willow - Narrowleaf Willow Wet Shrubland CEGL005984 2.C.4.Nb.5.a
Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: = Bluestem Willow-Coyote Willow CT (Muldavin et al. 2000a)
Concept Author(s): E. Muldavin et al. (2000a)

Author of Description: E. Muldavin et al.

Acknowledgements: No Data Available

Version Date: 07-21-04
  • Muldavin, E., P. Durkin, M. Bradley, M. Stuever, and P. Mehlhop. 2000a. Handbook of wetland vegetation communities of New Mexico. Volume I: Classification and community descriptions. Final report to the New Mexico Environment Department and the Environmental Protection Agency prepared by the New Mexico Natural Heritage Program, University of New Mexico, Albuquerque.
  • NHNM [Natural Heritage New Mexico]. No date. Unpublished data on file. Natural Heritage New Mexico, University of New Mexico, Albuquerque.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.