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Add/Drop	Name	Reference	Plots↓	Description
Comm #6031	Tsuga heterophylla - Picea sitchensis / Rubus spectabilis - Ribes bracteosum Forest » more details accession code: VB.CC.37351.CEGL002826		0	This linear forest plant community occurs on rich, moist, high bench floodplains of rivers that flood every few years in coastal British Columbia. These sites occur at elevations from 0 to 200 m on the lower elevations of the outer coast of Vancouver Island, British Columbia, and on the outer coast of British Columbia from Wells Passage, west of Broughton Island, to Smith Inlet. This community has a moderately developed shrub layer, well-developed forb layer dominated by ferns, and moderately developed moss layer. A high cover of <i>Tsuga heterophylla</i> and moderate cover of <i>Picea sitchensis</i> dominate the overstory. A high cover of <i>Rubus spectabilis</i> dominates the shrub layer along with moderate cover of <i>Tsuga heterophylla, Ribes bracteosum</i>, and <i>Vaccinium parvifolium</i>. The well-developed herb layer is characterized by moderate to high covers of the ferns <i>Polystichum munitum</i> and <i>Athyrium filix-femina</i>, with moderate cover of <i>Blechnum spicant, Tiarella trifoliata</i>, and <i>Maianthemum dilatatum</i>. The moderately developed moss layer is dominated by <i>Eurhynchium oreganum</i> and <i>Eurhynchium praelongum</i>.
Comm #6032	CEGL005045 » more details accession code: VB.CC.6425.CEGL005045 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #6033	Pinus palustris / Serenoa repens - Vaccinium myrsinites / Aristida beyrichiana - Sporobolus curtissii Woodland » more details accession code: VB.CC.27118.PINUSPALUSTRISS	Southeastern Ecology Working Gro...	0	This Pinus palustris flatwoods community is found in the South Atlantic Coastal Plain of northeastern Florida and southern Georgia, ranging into southern South Carolina. It is typified by a very open or naturally sparse canopy of Pinus palustris. Some stands have relatively minor amounts of Pinus elliottii present as well. Sporobolus curtissii is diagnostic of this type, at least relative to other Pinus palustris flatwoods in northern Florida. Aristida beyrichiana is also common. The shrub layer is well-developed and often dense, usually dominated by some combination of Serenoa repens, Vaccinium myrsinites, Gaylussacia tomentosa (= Gaylussacia frondosa var. tomentosa), Gaylussacia dumosa (= var. dumosa), Ilex glabra, Lyonia lucida, Quercus minima, and lesser amounts of Quercus pumila. In some sites, the herb layer is poorly developed and not very diverse; in other areas Sporobolus curtissii and Aristida beyrichiana are abundant and other herbs are diverse.
Comm #6034	Quercus rubra - Quercus prinus Woodland Alliance » more details accession code: VB.CC.19207.QUERCUSRUBRAQUE	Eastern Ecology Working Group of...	0	This alliance includes woodland communities occurring on acidic, talus slopes or rocky slopes of higher elevations (e.g., from 1000-2620 feet in New England and to 4500 feet in West Virginia). Soils are shallow and acidic. Quercus rubra is sometimes dominant but usually occurs in association with Quercus alba, Acer rubrum, Betula lenta, Quercus prinus, and others. Canopies are often stunted. The shrub layer may include, in the northern part of the range, Acer spicatum, Sambucus racemosa var. racemosa (= Sambucus racemosa ssp. pubens), Rhus typhina, Kalmia latifolia, Hamamelis virginiana, while in the southern part of the range, Rhododendron catawbiense, Rhododendron arborescens, Rhododendron calendulaceum, Rhododendron maximum, Menziesia pilosa, Gaylussacia ursina, Leucothoe recurva, Vaccinium simulatum, and Viburnum nudum var. cassinoides are more typical. Herbs include Pteridium aquilinum var. latiusculum, Aralia nudicaulis, Maianthemum canadense, Oclemena acuminata (= Aster acuminatus), Corydalis sempervirens, Deschampsia flexuosa, Carex pensylvanica, and Polypodium virginianum. Communities of this alliance are known from the Appalachian Mountains, from New York and New England, south to the Blue Ridge of North Carolina.
Comm #6035	Pseudotsuga menziesii - Tsuga heterophylla - Thuja plicata / Chimaphila umbellata / Rhytidiopsis robusta Forest » more details accession code: VB.CC.37350.CEGL002828		0	This matrix forest community occurs on a variety of mesic to submesic sites with medium to poor soil-nutrient regimes within submaritime and subcontinental areas of southwestern British Columbia at elevations of 0 to 1350 m. It occurs on gentle to steep slopes on all slope positions and all aspects. This coniferous forest plant community has moderately open to closed forest canopies, a poorly developed shrub layer with scattered regenerating conifers and other shrubs, a poorly developed herb layer with scattered forbs, and a moderately well-developed moss layer dominated by feathermosses, particularly <i>Hylocomium splendens</i>. The moderately open to closed canopy is characterized by a high cover of <i>Pseudotsuga menziesii</i> and <i>Tsuga heterophylla</i> with moderate cover of <i>Thuja plicata</i>. The poorly developed shrub layer has low cover of regenerating <i>Thuja plicata</i> and <i>Tsuga heterophylla</i> with low cover of <i>Paxistima myrsinites</i> and <i>Vaccinium membranaceum</i>. The poorly developed herb layer has low cover of <i>Chimaphila umbellata</i> and <i>Linnaea borealis</i> with very low cover of <i>Goodyera oblongifolia, Pyrola asarifolia</i>, and <i>Orthilia secunda</i>. The moderately well-developed moss layer is characterized by high cover of <i>Hylocomium splendens</i> with low to moderate cover of <i>Rhytidiopsis robusta, Pleurozium schreberi</i>, and <i>Rhytidiadelphus triquetrus</i>.
Comm #6036	CEGL007573 » more details accession code: VB.CC.7186.CEGL007573	EcoArt 2002	0
Comm #6037	Tsuga heterophylla - (Abies amabilis) - Picea sitchensis / Oplopanax horridus Forest » more details accession code: VB.CC.37339.CEGL002832		0	This community is found along the mainland coast adjacent to and sparingly on the northern half of Vancouver Island, northward to Portland Canal and including the windward Queen Charlotte Islands. The distribution of this community is below 600 m above sea level in the outer coast, and closer to below 400 m nearing the windward western slopes of the Coast Mountains. This highly productive coniferous forest community is situated on mainly lower slope or toeslope positions. With the exception of the Queen Charlotte Islands where <i>Abies amabilis</i> is absent, <i>Tsuga heterophylla</i> and <i>Abies amabilis</i> are the dominant trees in the frequently patchy open canopy, accompanied by variable coverage of <i>Picea sitchensis</i> and <i>Thuja plicata</i>. The shrub layer is normally dominated by <i>Oplopanax horridus</i>, followed in cover by <i>Rubus spectabilis, Vaccinium</i> spp., and <i>Menziesia ferruginea</i>. The herb layer is often well-developed, featuring <i>Blechnum spicant, Dryopteris expansa</i>, and rich-site indicators such as <i>Athyrium filix-femina</i> and <i>Tiarella</i> spp. Along with the omnipresent <i>Rhytidiadelphus loreus</i> and <i>Hylocomium splendens</i>, a number of rich-site bryophytes are common. These sites are easily distinguished by their productive coniferous forest, abundance of <i>Oplopanax horridus</i>, and their lower slope or toeslope positions.
Comm #6038	Pinus virginiana Forest Alliance » more details accession code: VB.CC.19033.PINUSVIRGINIANA	Southeastern Ecology Working Gro...	0	This alliance includes forests dominated by Pinus virginiana and occurring in the Piedmont from Pennsylvania south to Alabama, and ranging west into the Appalachians, Ridge and Valley, the Cumberland Plateau, and in scattered locales of the Interior Low Plateau. Forests in this alliance may have admixtures of Pinus taeda, Pinus echinata, Pinus pungens, and/or Pinus rigida. These other species, if present, can have canopy coverage between 1 and 50%. Other associated species vary with the geographic distribution of the alliance. In many associations, a dense ericaceous shrub stratum is typical. This alliance includes both early-successional forests resulting from natural or anthropogenic disturbances and natural forests in edaphically extreme situations. Typically, Pinus virginiana communities are short-lived as a forest and are more common as woodland communities [see Pinus (rigida, pungens, virginiana) - Quercus prinus Woodland Alliance (A.677)]. Associated species vary with the geographic distribution of the alliance.
Comm #6039	Trichophorum caespitosum Saturated Herbaceous Alliance » more details accession code: VB.CC.18941.TRICHOPHORUMCAE	Southeastern Ecology Working Gro...	0	This alliance includes saturated, boggy vegetation characterized by Trichophorum caespitosum (= Scirpus cespitosus). Other typical components include Carex spp. Some of the associations placed here at this time are anomalous southern disjuncts, since this alliance reaches its greatest development and diversity in boreal and montane portions of the northern hemisphere. Several of the associations placed here at present are associated with wet cliffs in the southern Appalachians.
Comm #6040	Tsuga heterophylla - Abies amabilis - (Pseudotsuga menziesii) / Hylocomium splendens Forest » more details accession code: VB.CC.37348.CEGL002833		0	This moist, submaritime coniferous community is found at higher elevations in drainages of the climatically transitional eastern side of the Coast Mountains in southwestern British Columbia and north to the lower Kimsquit River valley near the headwaters of Dean Channel. The slope positions are variable from middle to upper and lower to level, with mainly moderate slope gradients. In the mature to old-forest stage <i>Tsuga heterophylla</i> often has leading coverage in the canopy, followed by <i>Pseudotsuga menziesii, Thuja plicata</i>, and <i>Abies amabilis</i>. The shrub layer features <i>Vaccinium</i> spp., <i>Paxistima myrsinites, Abies amabilis</i>, and <i>Tsuga heterophylla</i>. The most common herb layer species are <i>Orthilia secunda, Linnaea borealis, Goodyera oblongifolia, Chimaphila umbellata, Clintonia uniflora</i>, and <i>Cornus canadensis</i>. <i>Hylocomium splendens</i> and <i>Rhytidiopsis robusta</i> are leading species in the moss layer, followed by <i>Pleurozium schreberi</i> and <i>Rhytidiadelphus loreus</i>. This intermediate association is distinguished by its normally gentle terrain on upper to lower and level slope positions and its slightly dry to fresh nutrient-poor to medium soils. In its mature to old-forest successional stage there should be an absence of drier site indicators such as <i>Pinus contorta, Arctostaphylos uva-ursi</i>, and <i>Cladonia</i> spp., as well as a general absence of species indicating more moist and/or rich soil conditions, such as <i>Tiarella trifoliata var. unifoliata (= Tiarella unifoliata), Gymnocarpium dryopteris, Streptopus lanceolatus</i>, and <i>Athyrium filix-femina</i>.