Name:
Pinus contorta var. contorta / Ledum groenlandicum / Carex cusickii North Pacific Bog & Fen Macrogroup
Reference:
NatureServe Biotics 2019
Description:
This macrogroup contains acidic to alkaline peatlands (bogs and fens) with low-growing shrubs, stunted trees, or dense herbaceous structure, or a mosaic of physiognomic types; nearly all have a moss-dominated ground layer. Indicator shrub and herbaceous species include <i>Betula nana, Carex aquatilis, Carex cusickii, Carex limosa, Carex livida, Carex utriculata, Comarum palustre, Kalmia microphylla, Ledum</i> spp., <i>Menyanthes trifoliata, Myrica gale, Salix pulchra, Spiraea douglasii</i>, and many others. The ground layer is usually very thick with <i>Sphagnum</i> moss or "brown mosses" such as <i>Campylium, Drepanocladus, Scorpidium, Tomentypnum</i>, and <i>Warnstorfia</i>. Stunted tree species present may include <i>Callitropsis nootkatensis, Pinus contorta var. contorta, Picea sitchensis, Thuja plicata</i>, and/or <i>Tsuga heterophylla</i>. This macrogroup occurs throughout southern Alaska (including the Aleutian Islands), maritime British Columbia, Washington, Oregon, and northern California. This includes lowlands such as the Puget Sound lowlands and higher montane and subalpine elevations in the coastal mountains, the Sierra Nevada, and the Klamath-Siskiyou mountains. The macrogroup is not limited to coastal/maritime areas. Elevations are mostly under 457 m (1500 feet). The macrogroup includes well-developed bogs, raised bogs, "poor" (aka acidic) and "rich" (aka alkaline), as well as neutral fens. Soils are deep (>40 cm) organic, and are usually saturated throughout the growing season. Sites include serpentine- and ultramafic-influenced peatlands in northern California. Water sources include mineral-rich groundwater (fens) to only that of precipitation (bogs).
Accession Code:
urn:lsid:vegbank.org:commConcept:40481-{3B28329E-94E7-47BD-AC5A-2CE72058D1E9}
Plot-observations of this Community Concept:
0
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