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CEGL002760 Equisetum hyemale Wet Meadow
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Scouringrush Horsetail Wet Meadow
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This wetland association has only been described from the Green and Yampa river drainages in northwestern Colorado and probably in adjacent eastern Utah, and it is expected to occur adjacent to perennial or intermittent streams or springs throughout the Colorado Plateau. This association occurs in small patches around seeps and ponds, on streambanks, and within floodplains. Soils are typically saturated during the growing season. The vegetation is characterized by moderate to dense cover of Equisetum hyemale var. affine and typically associated with forb species Apocynum cannabinum and Helenium autumnale var. montanum. Other forbs occur with low cover, but graminoids are largely absent. Seedlings of Populus deltoides ssp. wislizeni are often present, as are the shrubs Chrysothamnus linifolius and Salix exigua.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association occurs in very small patches and was probably overlooked during fieldwork for the Dinosaur Vegetation Mapping Project because the patches did not meet the size criterion for sampling. It is described here from data collected during previous studies along the Green River.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This community is characteristic of sites with periodic scouring floods or other disturbance. It generally occurs in small patches composed mainly of Equisetum hyemale with minor cover of associated species, including Heterotheca villosa and Rorippa palustris ssp. hispida. Total vegetation cover ranges from 25% to more than 100% depending on degree of soil saturation and how long the vegetation has had to develop since the latest flood. Native shrubs such as Chrysothamnus linifolius and Salix exigua may be minor elements of the community. Exotic species are often present, including Tamarix ramosissima, Bromus tectorum, Agrostis stolonifera, and Phragmites australis.
Dynamics: Equisetum hyemale is typically an early colonizer of sandbars and other sites that experience flash flooding and attendant scouring. Because Equisetum species are rhizomatous, they can withstand both scouring and sediment deposition. Equisetum hyemale requires wet conditions to become established but can persist as conditions become drier (Carsey et al. 2003a).
Environmental Description: This plant association occurs in small stands on level to moderately sloping sandbars and terraces adjacent to rivers and perennial streams in northwestern Colorado. Stands may also occur adjacent to springs and seeps. Elevations of documented sites range between 1580 and 2070 m (5180-6800 feet). Soils are generally saturated, sandy or silty in texture, and derived from alluvium or sedimentary rock.
Geographic Range: This association occurs along the Green River and some of its tributaries in northwestern Colorado and probably in adjacent eastern Utah.
Nations: US
States/Provinces: CO, UT?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.770566
Confidence Level: Moderate
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.b Sedge species - Reedgrass species Montane Wet Meadow & Marsh Group | G521 | 2.C.4.Nb.5.b |
| Alliance | A3539 Field Horsetail - Scouringrush Horsetail - Variegated Scouring-rush Wet Meadow Alliance | A3539 | 2.C.4.Nb.5.b |
| Association | CEGL002760 Scouringrush Horsetail Wet Meadow | CEGL002760 | 2.C.4.Nb.5.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Equisetum fluviatile Community Type (Kunze 1984)
= Equisetum fluviatile Habitat Type (Hansen et al. 1995)
= Equisetum hyemale Herbaceous Vegetation (Carsey et al. 2003a)
= Equisetum hyemale Herbaceous Vegetation (Coles et al. 2008a)
= Equisetum fluviatile Habitat Type (Hansen et al. 1995)
= Equisetum hyemale Herbaceous Vegetation (Carsey et al. 2003a)
= Equisetum hyemale Herbaceous Vegetation (Coles et al. 2008a)
- 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.
- Coles, J., D. Cogan, D. Salas, A. Wight, G. Wakefield, J. Von Loh, and A. Evenden. 2008a. Vegetation classification and mapping project report, Dinosaur National Monument. Natural Resource Technical Report NPS/NCPN/NRTR-2008/112. National Park Service, Fort Collins, CO. 814 pp.
- Hansen, P. L., R. D. Pfister, K. Boggs, B. J. Cook, J. Joy, and D. K. Hinckley. 1995. Classification and management of Montana''s riparian and wetland sites. Miscellaneous Publication No. 54. Montana Forest and Conservation Experiment Station, School of Forestry, University of Montana. 646 pp. plus posters.
- Kunze, L. M. 1984. Puget Trough coastal wetland sanctuaries: A summary report of recommended sites. Report to Washington Department of Ecology, Contract No. C-83061. Washington Natural Heritage Program, Washington Department of Natural Resources, Olympia.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.