Print Report

CEGL002001 Nuphar polysepala Aquatic Vegetation

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Rocky Mountain Pond-lily Aquatic Vegetation

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is composed of floating aquatic vegetation. It occurs on permanently flooded ponds, lakes, deeper beaver ponds, and glacial kettle lakes, from sea level to 2410 m (7900 feet) in elevation. Soils are usually organic Histosols, on anoxic muck or peat. Water depths range from 40 to 200 cm (1.25-6.5 feet). Stands have been observed where water levels fluctuate seasonally, leaving Nuphar high and dry on exposed mudflats, especially in drought years. Stands can completely fill smaller ponds, or occurrences may be only as large as the water depth allows, and are part of a larger mosaic of other freshwater emergent marsh communities. Nuphar polysepala is often the only species present. Cover is continuous, intermittent, or open. Other aquatic and emergent herbs present may include Menyanthes spp., Potamogeton spp., Glyceria spp., Eleocharis spp., Carex spp., Equisetum spp., Typha spp., and Lemna spp. Many of these associates are in shallower, adjacent water.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This association is defined as a PNV vegetation type. Dorn (1984) states that Nuphar variegatum occurs in northwestern Montana, while Nuphar polysepala occurs in the west and south-central parts of the state. Specimens from Glacier National Park were not identified to subspecies. As both subspecies occurs in Montana, Glacier NP stands may represent the transition between western Nuphar polysepala and the northerly Nuphar variegata.

Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available

Floristics: This aquatic association is characterized by the dominance of Nuphar polysepala (= Nuphar lutea ssp. polysepala; = Nuphar polysepalum), which is the often the only species present. Cover is continuous, intermittent, or open. Other aquatic and emergent herbs present may include Menyanthes spp., Potamogeton spp., Glyceria spp., Eleocharis spp., Carex spp. Equisetum spp., Typha spp., and Lemna spp. Many of these associates are in shallower, adjacent water.

Dynamics:  No Data Available
Environmental Description:  This association is composed of floating aquatic vegetation. It occurs on permanently flooded ponds, lakes, deeper beaver ponds, and glacial kettle lakes, from sea level to 3140 m (10,300 feet) elevation. Soils are usually organic Histosols, on anoxic muck or peat. Water is 40 to 200 cm (1.25-6.5 feet) deep, although stands have been observed where water levels fluctuate seasonally, leaving Nuphar high and dry on exposed mudflats, especially in drought years. Stands can completely fill smaller ponds, or stands may be only as large as the water depth allows and are part of a larger mosaic of other freshwater emergent marsh communities.
Geographic Range: This association occurs throughout northern California, from the Central Valley into the Sierra-Nevada, in Oregon, on the western Olympic Peninsula and the northern lowlands of the Puget Trough of Washington, throughout eastern Washington, north into British Columbia, and in the mountains of northwestern Montana, Idaho, northwestern Wyoming, and northern Colorado.

Nations: CA,US

States/Provinces:  BC, CA, CO, ID, MT, OR, WA, WY?


Confidence Level: Moderate

Confidence Level Comments: No Data Available
Grank: G5

Greasons: No Data Available
Type Name Database Code Classification Code
Class 5 Aquatic Vegetation Class C05 5
Subclass 5.B Freshwater Aquatic Vegetation Subclass S13 5.B
Formation 5.B.2 Temperate to Polar Freshwater Aquatic Vegetation Formation F057 5.B.2
Division 5.B.2.Na North American Freshwater Aquatic Vegetation Division D049 5.B.2.Na
Macrogroup 5.B.2.Na.2 Rocky Mountain Pond-lily - Pacific Mosquito Fern - Western Waterweed Western North American Freshwater Aquatic Vegetation Macrogroup M109 5.B.2.Na.2
Group 5.B.2.Na.2.a Pond-lily species - Pondweed species - Duckweed species Freshwater Aquatic Vegetation Group G544 5.B.2.Na.2.a
Alliance A3926 Rocky Mountain Pond-lily Western Aquatic Vegetation Alliance A3926 5.B.2.Na.2.a
Association CEGL002001 Rocky Mountain Pond-lily Aquatic Vegetation CEGL002001 5.B.2.Na.2.a
Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: = Nuphar lutea ssp. polysepala (McCain and Christy 2005) [5 plots]
= Nuphar lutea ssp. polysepala Association (Crowe et al. 2004)
= Nuphar lutea ssp. polysepala Association (Christy 2004)
= Nuphar lutea ssp. polysepala Herbaceous Vegetation (Crawford et al. 2009)
= Nuphar lutea association (Stumpf et al. 2017)
= Nuphar polysepala association (Odion et al. 2013)
= Nuphar polysepala Aquatic Vegetation (DiPaolo et al. 2018)
= Nuphar polysepala Association (Kovalchik 1993) [(p.183)]
= Nuphar polysepala Herbaceous Vegetation (Copass and Ramm-Granberg 2016a)
= Nuphar polysepalum community type (Kunze 1994) [(p.23,80)]
= Pond Lily Herbaceous Vegetation (Nuphar lutea ssp. polysepala) (Christy et al. 1998) [(p.134)]
= Yellow pond-lily series (Sawyer and Keeler-Wolf 1995) [(p.90)]
Concept Author(s): Western Ecology Group

Author of Description: K.A. Schulz

Acknowledgements: No Data Available

Version Date: 03-10-09
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