Print Report
A1647 Lomatium martindalei Meadow Alliance
Type Concept Sentence: This alliance occurs on some of the peaks of the Oregon Coast Ranges and is dominated by a mix of perennial forbs, such as Agoseris heterophylla, Lomatium martindalei, and Lupinus lepidus.
Common (Translated Scientific) Name: Cascade Desert-parsley Meadow Alliance
Colloquial Name: Cascade Desert-parsley Meadow
Hierarchy Level: Alliance
Type Concept: These herbaceous meadows are dominated by a mix of perennial forbs, such as Agoseris heterophylla, Lomatium martindalei, and Lupinus lepidus. Several grass species can also be common, including Aira praecox (introduced from Europe) and Koeleria macrantha. The nonvascular layer is important in this alliance and is composed of mosses and lichens. Nonvascular species present are not known. This alliance occurs on some of the peaks of the Oregon Coast Ranges. Elevations range from 750-1250 m elevation. The peaks are composed of intrusive igneous bedrock and in scattered localities support areas of non-forested meadows, known as grass balds. These balds are small openings in areas otherwise heavily forested, implying presence of this alliance is due to an unusual combination of topo-edaphic factors. This alliance is found in these non-forested patches, adjacent to bedrock outcrops and restricted to shallow, rocky and well-drained soils.
Diagnostic Characteristics: Low temperate perennial forb vegetation of the Pacific Northwest occupying balds dominated by Lomatium martindalei often with other forbs and grasses.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Little information exists on this vegetation and more investigation is needed.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: This alliance is composed of herbaceous communities dominated by a mix of perennial forbs with some graminoid species common. Typically, there is a strata of mosses in stands of the alliance, and lichens may be important as well.
Floristics: This is an herbaceous meadow alliance dominated by a mix of perennial forbs such as Agoseris heterophylla, Lomatium martindalei, and Lupinus lepidus. Several grass species can also be common, including Aira praecox (introduced from Europe) and Koeleria macrantha. The nonvascular layer is important in this alliance and is composed of mosses and, probably, lichens. Nonvascular species present are not known. No other information is available on species cover or composition.
Dynamics: Some shifts in species composition due to livestock grazing are apparent in most stands.
Environmental Description: The Coast Ranges, where this alliance occurs, are characterized by a maritime climate. Summers are cool and dry, while winters are mild and wet. Precipitation averages 120-305 cm (47-120 inches) annually, 80% of it occurring from October to March primarily as rain. This alliance occurs on some of the peaks of the Coast Ranges, ranging from 750-1250 m elevation. The peaks are composed of intrusive igneous bedrock and in scattered localities support areas of non-forested meadows, known as grass balds. These balds are small openings in areas otherwise heavily forested, implying presence of this alliance is due to an unusual combination of topo-edaphic factors. This alliance is found in these non-forested patches, adjacent to bedrock outcrops and restricted to shallow, rocky and well-drained soils.
Geographic Range: This alliance has been described from the northern Oregon Coast Ranges, in northwestern Oregon. It may also occur in coast ranges of southwestern Washington, but has not been documented from there.
Nations: US
States/Provinces: OR, WA?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.899160
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Nf Western North American Grassland & Shrubland Division | D022 | 2.B.2.Nf |
| Macrogroup | 2.B.2.Nf.4 Southern Vancouverian Lowland Grassland & Shrubland Macrogroup | M050 | 2.B.2.Nf.4 |
| Group | 2.B.2.Nf.4.a Manzanita species / Roemer''s Fescue - California Oatgrass Shrubland & Grassland Group | G488 | 2.B.2.Nf.4.a |
| Alliance | A1647 Cascade Desert-parsley Meadow Alliance | A1647 | 2.B.2.Nf.4.a |
| Association | CEGL001972 Cascade Desert-parsley Grassland | CEGL001972 | 2.B.2.Nf.4.a |
Concept Lineage: equivalent to A.1647
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.