Print Report
CEGL003461 Deschampsia cespitosa - Horkelia marinensis Marsh
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Tufted Hairgrass - Point Reyes Honeydew Marsh
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is only known from the Point Reyes National Seashore, California. Information about its global characteristics is not available without additional inventory. It was likely to be more widespread along the coast from Santa Cruz County, California, north to Washington, prior to the introduction of invasive exotic annual and perennial grasses. Other similar stands at Salt Point State Park occur adjacent to the coastal bluffs as a rim of native grassland adjacent to non-native annual and perennial grassland. Stands of this grassland association form an intermittent to continuous herb layer of up to 25% mosses and lichens, 40-50% cover at 0-25 cm and 7-15% at 25-50 cm tall. This association is dominated by Deschampsia cespitosa. Horkelia marinensis is usually from 1-18% cover. Other species are characteristic of coastal dunes and include Cardionema ramosissimum, Armeria maritima, Gamochaeta purpurea, Vulpia bromoides (exotic), Carpobrotus edulis (exotic), and Holcus lanatus (exotic).
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: At Point Reyes National Seashore, stands of this grassland association form an intermittent to continuous herb layer of up to 25% mosses and lichens, 40-50% cover at 0-25 cm and 7-15% at 25-50 cm tall. This association is dominated by Deschampsia cespitosa. Horkelia marinensis is usually from 1-18% cover. Other species are characteristic of coastal dunes and include Cardionema ramosissimum, Armeria maritima, Gamochaeta purpurea (= Gnaphalium purpureum), Vulpia bromoides (exotic), Carpobrotus edulis (exotic), and Holcus lanatus (exotic).
Dynamics: No Data Available
Environmental Description: This association is only known from the Point Reyes National Seashore. Information about its global characteristics is not available without additional inventory. Other similar stands at Salt Point State Park occur adjacent to the coastal bluffs as a rim of native grassland adjacent to non-native annual and perennial grassland.
Geographic Range: This association is only known from the Point Reyes National Seashore. Information about its global characteristics is not available without additional inventory. It was likely to be more widespread along the coast from Santa Cruz County, California, north to Washington, prior to the introduction of invasive exotic annual and perennial grasses. Small stands resembling this association have been inventoried at Salt Point State Park in Sonoma County (CNDDB 1993).
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686488
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.4 Vancouverian Lowland Marsh, Wet Meadow & Shrubland Macrogroup | M073 | 2.C.4.Nb.4 |
| Group | 2.C.4.Nb.4.b Bering''s Tufted Hairgrass - Pacific Silverweed - Slough Sedge Vancouverian Freshwater Coastal Marsh & Wet Meadow Group | G517 | 2.C.4.Nb.4.b |
| Alliance | A3820 California Oatgrass - Lakeshore Sedge - Tufted Hairgrass Coastal & Lowland Marsh Alliance | A3820 | 2.C.4.Nb.4.b |
| Association | CEGL003461 Tufted Hairgrass - Point Reyes Honeydew Marsh | CEGL003461 | 2.C.4.Nb.4.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Deschampsia caespitosa - Horkelia marinensis (Sawyer et al. 2009) [41.220.13]
= Deschampsia cespitosa - Horkelia marinensis Association (Schirokauer et al. 2003) [pi code 52042]
= Deschampsia cespitosa - Horkelia marinensis Association (Schirokauer et al. 2003) [pi code 52042]
- CNDDB [California Natural Diversity Database]. 1993. North Coast sensitive natural community field inventory. June-July 1993. Administrative report on file at California Natural Diversity Database, California Department of Fish and Game, Sacramento.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- Schirokauer, D., T. Keeler-Wolf, J. Meinke, and P. van der Leeden. 2003. Plant community classification and mapping project. Point Reyes National Seashore, Golden Gate National Recreation Area, San Francisco Water Department Watershed Lands, Mount Tamalpais, Tomales Bay, and Samuel P. Taylor State Parks. Final report. California State Department of Fish and Game, Wildlife and Habitat Data Analysis Branch, Sacramento, National Park Service, Point Reyes Station, and Aerial Information Systems, Redlands, CA. 82 pp. [http://biology.usgs.gov/npsveg/pore_goga/index.html]
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.