Comm #2931
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Pinus banksiana / Kalmia angustifolia - Vaccinium spp. Woodland
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accession code: urn:lsid:vegbank.org:commConcept:34691-{76B1236F-FE9F-4A44-AC38-93C2FFADE0D4}
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NatureServe Biotics 2019 |
3
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The jack pine woodland of northern New England and the Canadian maritime provinces occurs sporadically on dry rocky summits, ridges, outcrops and lakeshores. Soil development is typically restricted to crevices or sheltered patches among the predominant exposed bedrock. Where they occur, soils are shallow, well-drained to excessively drained, dry, acidic, coarse sands. Elevations of known examples range from near sea level to 1220 m (4000 feet). The dominant vegetation features are the patchy and open canopy and the extensive dwarf-shrub layer. Tall shrubs and herbs are sparse. The bryoid layer often features large areas of reindeer lichens and drought-tolerant mosses. The ground cover is sparse needle litter and exposed bedrock. In the canopy, which ranges from 25-60% cover, <i>Pinus banksiana</i> is dominant. Less abundant conifers may include <i>Picea rubens, Picea mariana</i> (at coastal sites), <i>Pinus strobus</i>, or <i>Abies balsamea</i>. <i>Betula papyrifera var. papyrifera</i> and <i>Betula papyrifera var. cordifolia</i> may be present, but the deciduous canopy component is minor. Tall shrubs include <i>Sorbus americana, Viburnum nudum var. cassinoides, Ilex mucronata, Aronia melanocarpa</i>, or <i>Amelanchier</i> spp. The low heath layer is composed of <i>Vaccinium angustifolium, Vaccinium myrtilloides, Gaylussacia baccata, Kalmia angustifolia</i>, and, near the coast, <i>Empetrum nigrum</i> and <i>Vaccinium vitis-idaea</i>. Forbs and graminoids include <i>Deschampsia flexuosa, Danthonia spicata, Sibbaldiopsis tridentata, Cornus canadensis, Trientalis borealis, Solidago simplex var. randii</i>, and <i>Maianthemum canadense</i>. The bryophyte layer is dominated by lichens such as <i>Cladonia stellaris, Cladonia rangiferina, Rhizocarpon geographicum</i>, and <i>Umbilicaria</i> spp. Mosses include <i>Pleurozium schreberi, Polytrichum juniperinum</i>, and <i>Polytrichum piliferum</i>. |
Comm #2934
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Schoenoplectus acutus var. acutus - Schoenoplectus tabernaemontani Herbaceous Vegetation
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accession code: VB.CC.29439.SCHOENOPLECTUSA
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Carsey et al 2003b |
3
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The Scirpus acutus-Scirpus tabernaemontani (softstem and hardstem bulrush) plant association occurs in marshes, along the margins of lakes and ponds, and in backwaters areas of rivers in water up to one meter deep. This association is characterized by a near mono-typic stand of Scirpus acutus (threesquare bulrush) (80%), with a few aquatic species including Eleocharis rostellata (spikerush) (10%), Mimulus guttatus (yellow monkey flower) (1%), Sagittaria spp. (arrowhead), Carex spp. (sedge) and Nuphar lutea ssp. polysepala (yellow pond-lily). |
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