Print Report
CEGL001745 Elymus lanceolatus - Phacelia hastata Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Thick-spike Wheatgrass - Silverleaf Phacelia Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: The association is a very narrowly defined community, unique to the Centennial Valley Sandhills in southwestern Montana, a high and cold valley experiencing prolonged and severe episodes of cold-air ponding and deep snow accumulation. Elevation ranges from 2000-2135 m. Sites are active sand dunes and blowouts. Substrate is sand. The sparse to moderately dense vegetation of this seral community is dominated by the medium-tall perennial graminoid Elymus lanceolatus, with 5-25% cover or higher. Sparse cover (1-20%) of other species may be present, such as the shrubs Ericameria nauseosa, Tetradymia canescens, grasses Achnatherum hymenoides, Hesperostipa comata, and forbs Eriogonum ovalifolium var. purpureum, Linum perenne, Psoralidium tenuiflorum, and the characteristic species Phacelia hastata. Diagnostic of this association is the dominance of Elymus lanceolatus and the presence of Phacelia hastata in the herbaceous layer.
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: The sparse to moderately dense vegetation of this seral community is dominated by the medium-tall perennial graminoid Elymus lanceolatus, with 5-25% cover or higher. Sparse cover (1-20%) of other species may be present, such as the shrubs Ericameria nauseosa (= Chrysothamnus nauseosus), Tetradymia canescens, grasses Achnatherum hymenoides (= Oryzopsis hymenoides), Hesperostipa comata (= Stipa comata), and forbs Eriogonum ovalifolium var. purpureum, Linum perenne, Psoralidium tenuiflorum (= Psoralea tenuiflora), and the characteristic species Phacelia hastata. Diagnostic of this association is the dominance of Elymus lanceolatus and the presence of Phacelia hastata in the herbaceous layer.
Dynamics: No Data Available
Environmental Description: The association is found in a high and cold valley experiencing prolonged and severe episodes of cold-air ponding and deep snow accumulation. Elevation ranges from 2000-2135 m. Sites are active sand dunes and blowouts. Substrate is sand.
Geographic Range: This is a very narrowly defined community type, unique to the Centennial Valley Sandhills in southwestern Montana.
Nations: US
States/Provinces: MT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684114
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2
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.2 Saskatoon Serviceberry / Idaho Fescue - Bluebunch Wheatgrass Grassland & Shrubland Macrogroup | M048 | 2.B.2.Nf.2 |
| Group | 2.B.2.Nf.2.c Rough Fescue - Idaho Fescue - Bluebunch Wheatgrass Central Rocky Mountain Foothill Grassland Group | G273 | 2.B.2.Nf.2.c |
| Alliance | A3985 Streambank Wheatgrass - Needle-and-Thread - Silverleaf Scorpionweed Central Rocky Mountain Sand Deposit Grassland Alliance | A3985 | 2.B.2.Nf.2.c |
| Association | CEGL001745 Thick-spike Wheatgrass - Silverleaf Phacelia Grassland | CEGL001745 | 2.B.2.Nf.2.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Agropyron dasystachyum / Phacelia hastata Community Type (DeVelice 1992)
= Agropyron dasystachyum / Phacelia hastata Community Type (Cooper et al. 1995)
= Elymus lanceolatus - Phacelia hastata Herbaceous Vegetation (Cooper et al. 1999)
= Agropyron dasystachyum / Phacelia hastata Community Type (Cooper et al. 1995)
= Elymus lanceolatus - Phacelia hastata Herbaceous Vegetation (Cooper et al. 1999)
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Cooper, S. V., C. Jean, and B. L. Heidel. 1999. Plant associations and related botanical inventory of the Beaverhead Mountains Section, Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena. 235 pp.
- Cooper, S. V., P. Lesica, R. L. DeVelice, and T. McGarvey. 1995. Classification of southwestern Montana plant communities with emphasis on those of Dillon Resource Area, Bureau of Land Management. Montana Natural Heritage Program, Helena, MT. 154 pp.
- DeVelice, R. L. 1992. Classification of the plant communities of Beaverhead, Silver Bow, and Madison counties, Montana. Volume I (text). Prepared for the Montana Natural Heritage Program, Helena, MT. 35 pp.
- MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.