Name:
Picea mariana / Ledum groenlandicum / Carex trisperma / Sphagnum spp. Open Bog Woodland
Reference:
NatureServe Biotics 2019
Description:
This black spruce-dominated raised bog community type is found in the subboreal to boreal regions of the Great Lakes, elsewhere in the boreal region of central Canada, and across to Maine. Stands are typically on the crests of raised bog landforms in large peatland complexes, as well as in basin bogs. Sites are poorly drained, with wet organic substrates. Tree cover forms at least 25% canopy (and may be very dense), varying in height from 3 m to over 10 m. <i>Picea mariana</i> is often the sole species in the canopy. <i>Larix laricina</i> may occasionally occur. The dwarf-shrub layer is dominated by <i>Ledum groenlandicum</i> and other ericaceous shrubs, such as <i>Chamaedaphne calyculata, Vaccinium myrtilloides, Vaccinium oxycoccos, Kalmia polifolia, Kalmia angustifolia, Gaultheria hispidula</i>, and <i>Andromeda polifolia</i>. <i>Picea mariana</i> may also be found in scrub form in this layer. Ground cover consists of a species-poor herb layer, with <i>Carex trisperma, Eriophorum vaginatum</i>, and <i>Maianthemum trifolium</i> most prevalent. Moss cover is a <i>Sphagnum</i> carpet with patches of feathermoss (especially <i>Pleurozium schreberi</i>) and conifer litter beneath the trees. Dominant sphagnum species include <i>Sphagnum magellanicum, Sphagnum fuscum, Sphagnum recurvum</i>, and <i>Sphagnum angustifolium</i>, and less commonly, <i>Sphagnum capillifolium</i> and <i>Sphagnum girgensohnii</i>. Minerotrophic indicators, such as <i>Betula pumila, Carex stricta</i>, and <i>Carex aquatilis</i>, are absent.
Accession Code:
urn:lsid:vegbank.org:commConcept:31393-{0C520C02-DD92-44DD-887F-781EE588FBF8}
Plot-observations of this Community Concept:
6
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