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CEGL002647 Populus angustifolia / Salix irrorata Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Narrowleaf Cottonwood / Dewystem Willow Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This riparian woodland association represents young, early-seral stands of Populus angustifolia occurring in the transition zone between Populus angustifolia and Populus deltoides in Colorado and the San Francisco River watershed in southwestern New Mexico. Stands are found at or below the high-water mark on streambanks, point bars and sidebars of meandering low-gradient rivers that are flooded perhaps every five years at mid elevations (1700-2200 m). Soils have been reported as sandy-skeletal Oxyaquic Ustifluvents. The association is characterized by all age classes of Populus angustifolia, but may include significant cover of Populus deltoides ssp. monilifera in stands in the upper South Platte River Basin of Colorado. Populus x acuminata and Salix amygdaloides may also be present. In New Mexico stands, Populus angustifolia and Populus fremontii codominate a dense tree canopy. Salix irrorata and Salix exigua codominate the shrubby understory. The shrub canopy consists of thick bands of willow along the streambank, mostly Salix irrorata but may include Salix exigua, Salix monticola, and Alnus incana. Herbaceous undergrowth is sparse; however, invasive annual species can be abundant, including Agrostis stolonifera, Poa pratensis, Bromus inermis, Ambrosia artemisiifolia, Chenopodium fremontii, Salsola kali, Sisymbrium altissimum, and Xanthium strumarium. Native species present may include Rudbeckia laciniata, Carex nebrascensis, Glyceria grandis, Schoenoplectus acutus, and Epilobium spp. Native wetland indicators that have been recorded for the type are Schoenoplectus pungens and Equisetum arvense.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type was previously described by Kittel et al. (1996) for Colorado. Salix irrorata is also reported as an important component of Szaro''s (1989) Populus angustifolia Community Type.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The association is characterized by 5-40% cover of all age classes of Populus angustifolia, but may include significant cover (4-58%) of Populus deltoides ssp. monilifera in stands in the upper South Platte River Basin of Colorado. Populus x acuminata and Salix amygdaloides may also be present. In New Mexico stands, Populus angustifolia and Populus fremontii codominate a dense tree canopy (>75% cover). Salix irrorata and Salix exigua codominate the shrubby understory. The shrub canopy consists of thick bands of willow along the streambank, mostly Salix irrorata but may include Salix exigua, Salix monticola, and Alnus incana. Herbaceous undergrowth is sparse; however, invasive annual species can be abundant, including Agrostis stolonifera, Poa pratensis, Bromus inermis, Ambrosia artemisiifolia, Chenopodium fremontii, Salsola kali, Sisymbrium altissimum, and Xanthium strumarium. Native species present may include Rudbeckia laciniata, Carex nebrascensis, Glyceria grandis, Schoenoplectus acutus, and Epilobium spp. Native wetland indicators that have been recorded for the type are Schoenoplectus pungens (= Scirpus pungens) and Equisetum arvense.
Dynamics: No Data Available
Environmental Description: This riparian woodland association represents young, early-seral stands of Populus angustifolia occurring in the transition zone between Populus angustifolia and Populus deltoides in Colorado and the San Francisco River watershed in southwestern New Mexico. Stands are found at or below the high-water mark on streambanks, point bars and sidebars of meandering low-gradient rivers that are flooded perhaps every five years at mid elevations (1700-2200 m). Soils have been reported as sandy-skeletal Oxyaquic Ustifluvents.
Geographic Range: The association is found in along foothill streams of the Colorado Front Range and is likely to occur farther east along the Arkansas and Purgatorie rivers. In New Mexico it is reported from the San Francisco River watershed in the southwest and the Rio Grande valley.
Nations: US
States/Provinces: CO, NM
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688123
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2
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.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Nc Rocky Mountain-Great Basin Montane Flooded & Swamp Forest Division | D195 | 1.B.3.Nc |
| Macrogroup | 1.B.3.Nc.1 Engelmann Spruce - Narrowleaf Cottonwood / Red-osier Dogwood Riparian & Swamp Forest Macrogroup | M034 | 1.B.3.Nc.1 |
| Group | 1.B.3.Nc.1.a Engelmann Spruce - Blue Spruce - Narrowleaf Cottonwood Riparian & Swamp Forest Group | G506 | 1.B.3.Nc.1.a |
| Alliance | A3759 Narrowleaf Cottonwood Riparian Forest Alliance | A3759 | 1.B.3.Nc.1.a |
| Association | CEGL002647 Narrowleaf Cottonwood / Dewystem Willow Riparian Woodland | CEGL002647 | 1.B.3.Nc.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus angustifolia / Salix irrorata Woodland (Carsey et al. 2003a)
= Narrowleaf Cottonwood/Bluestem Willow CT (Muldavin et al. 2000a)
= Narrowleaf Cottonwood/Bluestem Willow CT (Muldavin et al. 2000a)
- CNHP [Colorado Natural Heritage Program]. 2006-2017. Tracked natural plant communities. Colorado Natural Heritage Program, Colorado State University, Fort Collins. [https://cnhp.colostate.edu/ourdata/trackinglist/plant_communities/]
- Carsey, K., G. Kittel, K. Decker, D. J. Cooper, and D. Culver. 2003a. Field guide to the wetland and riparian plant associations of Colorado. Colorado Natural Heritage Program, Fort Collins, CO.
- Durkin, P., M. Bradley, E. Muldavin, and P. Mehlhop. 1995a. Riparian/wetland vegetation community classification of Rio Grande: A classification and site evaluation. Unpublished report for New Mexico Environment Department Surface Water Quality Bureau. New Mexico Natural Heritage Program, Albuquerque.
- Kittel, G., E. Van Wie, M. Damm, R. Rondeau, S. Kettler, and J. Sanderson. 1999a. A classification of the riparian plant associations of the Rio Grande and Closed Basin watersheds, Colorado. Unpublished report prepared by the Colorado Natural Heritage Program, Colorado State University, Fort Collins.
- Kittel, G., R. Rondeau, and A. McMullen. 1996. A classification of the riparian vegetation of the Lower South Platte and parts of the Upper Arkansas River basins, Colorado. Submitted to Colorado Department of Natural Resources and the Environmental Protection Agency, Region VIII. Prepared by Colorado Natural Heritage Program, Fort Collins. 243 pp.
- 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.
- Szaro, R. C. 1989. Riparian forest and scrubland community types of Arizona and New Mexico. Desert Plants Special Issue 9(3-4):70-139.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.