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CEGL005125 Pinus banksiana - (Pinus resinosa) - Pinus strobus / Juniperus horizontalis Wooded Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jack Pine - (Red Pine) - Eastern White Pine / Creeping Juniper Wooded Grassland
Colloquial Name: Great Lakes Coast Pine Barrens
Hierarchy Level: Association
Type Concept: This pine barrens type is found in sandy areas along the Great Lakes shores of the United States and Canada. Stands occur on sands on former lake embayments and on some dune-and-swale complexes along the shores of the Great Lakes. Soils are circumneutral dry sands. Where this community occurs as part of a dune-and-swale complex it is found on the slopes and ridges of the dunes. The vegetation forms a coniferous savanna of scattered and clumped trees. Patches of bare sand are common. In the tree layer, Pinus banksiana is usually the single most abundant tree, but several other species, including Pinus resinosa and Pinus strobus are typically present. Much of the shrub layer is composed of evergreen species, namely Arctostaphylos uva-ursi, Hudsonia tomentosa, Juniperus horizontalis, Juniperus communis, and Vaccinium angustifolium. The most abundant species of the ground layer include Agrostis hyemalis, Arabis lyrata, Ammophila breviligulata, Calamovilfa longifolia, Danthonia spicata, Deschampsia flexuosa, and Toxicodendron radicans. In dune-swale complexes, the swales between the dunes are often close enough to the water table to support more mesophytic, sometimes even semi-aquatic, plants. Along the shores of the Great Lakes there is often a dense low or creeping shrub layer.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: In Wisconsin, this type occurs in Lake Superior on the Apostle Islands. The physiognomy of the understory is complex, containing patches of shrub, dwarf-shrub, herbaceous, and sparse vegetation. The ground layer vegetation is somewhat related to the Great Lakes Juniper Dune Shrubland type, ~Juniperus horizontalis - Arctostaphylos uva-ursi - Juniperus communis Dune Dwarf-shrubland (CEGL005064)$$. Several stands on Lake Michigan contain a number of prairie disjuncts (E. Epstein pers. comm. 1999).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The vegetation forms a coniferous savanna of scattered and clumped trees. Patches of bare sand are common. In the tree layer, Pinus banksiana is usually the single most abundant tree, but several other species, including Pinus resinosa and Pinus strobus are typically present. Much of the shrub layer is composed of evergreen species, namely Arctostaphylos uva-ursi, Hudsonia tomentosa, Juniperus horizontalis, Juniperus communis, and Vaccinium angustifolium. The most abundant species of the ground layer include Ammophila breviligulata, Agrostis hyemalis, Arabis lyrata, Calamovilfa longifolia, Danthonia spicata, Deschampsia flexuosa, and Toxicodendron radicans. In dune-swale complexes, the swales between the dunes are often close enough to the water table to support more mesophytic, sometimes even semi-aquatic, plants. Along the shores of the Great Lakes there is often a dense low or creeping shrub layer (Chapman et al. 1989). Stunted individuals of Quercus rubra are present in stands in Keweenaw County, MI (Chapman et al. 1989).
Dynamics: No Data Available
Environmental Description: This community occurs on sandy former lake embayments and on some dune and swale complexes along the shores of the Great Lakes. Changes in the lake water levels periodically raises the water table. Soils are circumneutral (pH 6.6-7.3) dry sands (Chapman et al. 1989).
Geographic Range: This pine barrens type is found along sandy areas of the Great Lakes shores in the United States and Canada, including areas in Wisconsin, Michigan, and Ontario.
Nations: CA,US
States/Provinces: IN, MI, MN, ON, WI
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683418
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G2
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Na Eastern North American Forest & Woodland Division | D008 | 1.B.2.Na |
| Macrogroup | 1.B.2.Na.6 Eastern White Pine - Jack Pine - Northern Pin Oak Forest & Woodland Macrogroup | M159 | 1.B.2.Na.6 |
| Group | 1.B.2.Na.6.d Jack Pine - Northern Pin Oak Barrens Group | G160 | 1.B.2.Na.6.d |
| Alliance | A4402 Jack Pine - Eastern White Pine / Creeping Juniper Wooded Grassland Alliance | A4402 | 1.B.2.Na.6.d |
| Association | CEGL005125 Jack Pine - (Red Pine) - Eastern White Pine / Creeping Juniper Wooded Grassland | CEGL005125 | 1.B.2.Na.6.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus banksiana - (Pinus resinosa) - Pinus strobus / Juniperus horizontalis Wooded Herbaceous Vegetation (Faber-Langendoen 2001) [Pine Barrens Great Lakes Mixed Pine Subtype]
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