Print Report
CEGL004002 Populus fremontii / Salix (ligulifolia, lutea) Riparian Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Fremont Cottonwood / (Strapleaf Willow, Yellow Willow) Riparian Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland association is known from narrow stream terraces and intermittently flooded drainage bottoms in Canyonlands National Park and Natural Bridges National Monument. Occurrences range from 1555 to 1910 m of elevation on flat, moderately well- to rapidly drained substrates of sands or loamy sands derived of alluvium. Bare ground, litter, and bare sand occupy most of the unvegetated surface. The vegetation of these stands is characterized by open canopies of Populus fremontii with a moderately dense to dense shrub layer dominated by Salix lutea. Other shrub associates include Salix exigua, Mahonia fremontii, Tamarix chinensis, and Rhus trilobata. The herbaceous layer may be patchy to dense depending on shrub cover. Herbaceous associates include Equisetum laevigatum, Phragmites australis, Juncus arcticus, Solidago canadensis, Heterotheca villosa, Comandra umbellata, and Penstemon cyanocaulis, and Juncus arcticus ssp. littoralis.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association has been reported from two NPS units within the northern Colorado Plateau: Canyonlands National Park and Natural Bridges National Monument. It is likely to occur elsewhere where the ranges of the diagnostic species overlap (primarily the northern Colorado Plateau).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The vegetation of these stands ranges from 60 to nearly 100% total cover. The dominant vegetation is characterized by open canopies of Populus fremontii ranging from 10-18% with a moderately dense to dense shrub layer dominated by Salix lutea. Other shrub associates include Salix exigua, Mahonia fremontii, Tamarix chinensis, Ericameria nauseosa, and Rhus trilobata. The herbaceous layer may be patchy to dense depending on shrub cover. Herbaceous associates include Equisetum laevigatum, Phragmites australis, Juncus arcticus, Solidago canadensis, Heterotheca villosa, Comandra umbellata, Penstemon cyanocaulis, and Juncus arcticus ssp. littoralis (= Juncus balticus). The riparian vine Clematis ligusticifolia may contribute sparse cover.
Dynamics: This alluvial association is maintained by frequent flooding in stream bottoms representing an early-seral community. However, the understory of willow species may be long-lived on stream terraces if moist conditions persist. If conditions become drier, the understory may be replaced with graminoid species.
Environmental Description: This woodland association is known from narrow stream terraces and intermittently flooded drainage bottoms. Occurrences range from 1555 to 1910 m of elevation on flat, moderately well- to rapidly drained substrates of sands or loamy sands derived from alluvium. Bare ground, litter, and bare sand occupy most of the unvegetated surface.
Geographic Range: This riparian woodland has only been reported from three locations in two National Park Service units on the Colorado Plateau (Utah).
Nations: US
States/Provinces: UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.794355
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.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Nd Western North American Interior Flooded Forest Division | D013 | 1.B.3.Nd |
| Macrogroup | 1.B.3.Nd.2 Interior Warm & Cool Desert Riparian Forest Macrogroup | M036 | 1.B.3.Nd.2 |
| Group | 1.B.3.Nd.2.b Western Interior Riparian Forest & Woodland Group | G797 | 1.B.3.Nd.2.b |
| Alliance | A0644 Fremont Cottonwood Great Basin Riparian Forest Alliance | A0644 | 1.B.3.Nd.2.b |
| Association | CEGL004002 Fremont Cottonwood / (Strapleaf Willow, Yellow Willow) Riparian Woodland | CEGL004002 | 1.B.3.Nd.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus fremontii / Salix (ligulifolia, lutea) Woodland (Tendick et al. 2012)
- Coles, J., J. Von Loh, A. Evenden, G. Manis, G. Wakefield. and A. Wight. 2008c. Vegetation classification and mapping project report, Natural Bridges National Monument. Natural Resource Technical Report NPS/NCPN/NRTR--2008/077. National Park Service, Fort Collins, CO. 390 pp.
- Tendick, A., J. Coles, K. Decker, M. Hall, J. Von Loh, T. Belote, A. Wight, G. Wakefield, and A. Evenden. 2012. Vegetation classification and mapping project report, Canyonlands National Park. Natural Resource Technical Report NPS/NCPN/NRTR--2012/577. National Park Service, Fort Collins, CO.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.