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Name
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Reference
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Plots↓
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Description |
Comm #12651
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CEGL001962
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accession code: VB.CC.4515.CEGL001962
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12652
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Picea sitchensis / Oplopanax horridus Giant Forest
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accession code: VB.CC.33228.CEGL000057
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
0
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Comm #12653
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Pinus contorta var. contorta / Arctostaphylos uva-ursi Woodland
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accession code: VB.CC.33060.CEGL002605
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Western Ecology Working Group of... |
0
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These woodlands are found discontinuously along the coast between northern California and southwestern Washington. This woodland association occurs on all aspects on dry, partially-stabilized sand ridges, slopes, and flats, between open sand and the forest edge. Stands also occur on dry deflation plains. Requirements seem to be minimal sand movement, and well-drained, exposed sites. <i>Pinus contorta var. contorta</i> dominates the very open canopy, with stunted trees averaging 31% cover. Young <i>Pseudotsuga menziesii</i> or <i>Picea sitchensis</i> trees can occasionally be found. All stands are dominated by conspicuous mats of <i>Arctostaphylos uva-ursi</i>, reindeer lichens and mosses. Common species of lichens and mosses include <i>Cladina portentosa ssp. pacifica, Cladonia cervicornis ssp. verticillata, Racomitrium ericoides, Polytrichum juniperinum</i> and <i>Polytrichum piliferum</i>. These cryptogams form thin, fragile mats growing over bare sand, with very little organic matter. <i>Arctostaphylos uva-ursi</i> may cover up to 75% of stands, mosses up to 80%, and lichens up to 25%. The early seral status of the association is confirmed by the virtual lack of dead trees, and live basal area is the lowest of any forest or woodland association described from coastal dunes. The shrub layer is depauperate, and most vegetation is confined to the ground layer. <i>Pteridium aquilinum, Aira caryophyllea</i> and <i>Allotropa virgata</i> may be conspicuous. Areas of open sand often contain remnants of earlier seral stages, such as <i>Festuca rubra, Poa macrantha</i> or <i>Lupinus littoralis</i>. These woodlands are easily distinguished by the open and low-shrub understory and dense lichen mats. The type is the only <i>Pinus contorta var. contorta</i> woodland with significant cover of <i>Arctostaphylos uva-ursi</i>. |
Comm #12654
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Pinus ponderosa / Purshia tridentata / Carex geyeri Woodland
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accession code: VB.CC.33196.CEGL002606
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Western Ecology Working Group of... |
0
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This woodland is known from the Ochoco Range and southern Blue Mountains of eastern Oregon and is reported from California and may occur in Washington. It is found between 1465-1650 m (4800-5400 feet) elevation on southerly aspects up to 25% slope. Soils are loams with varying amounts of silt, sand, and clay. <i>Pinus ponderosa</i> is the sole tree, averaging 42% cover. <i>Purshia tridentata</i> is the dominant shrub (13% cover) with minor amounts of <i>Mahonia repens</i> (2% cover) and occasional <i>Cercocarpus ledifolius</i> (4% cover), <i>Symphoricarpos albus</i> (3% cover), and <i>Ceanothus velutinus</i> (2% cover). <i>Carex geyeri</i> (37% cover) dominates the herb layer with occasional <i>Achillea millefolium</i> and <i>Carex rossii</i>. Periodic fires limit <i>Purshia tridentata</i> but maintain <i>Pinus ponderosa</i>. |
Comm #12655
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CEGL000911
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accession code: VB.CC.3513.CEGL000911
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12656
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CEGL000912
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accession code: VB.CC.3514.CEGL000912
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12657
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I.A.9
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accession code: VB.CC.223.IA9
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EcoArt 2002 |
0
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Comm #12658
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Metrosideros polymorpha / Melinis spp. - Andropogon virginicus Ruderal Woodland
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accession code: VB.CC.31555.CEGL008160
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Western Ecology Working Group of... |
0
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Comm #12659
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CEGL006104
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accession code: VB.CC.6663.CEGL006104
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12660
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Abies lasiocarpa / Rhododendron albiflorum / Senecio triangularis Woodland
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accession code: VB.CC.34566.CEGL002613
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Western Ecology Working Group of... |
0
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This riparian association is endemic to the Okanogan Highlands of Washington from Pend Oreille River to the Sinlahekin drainage in the eastern Cascades. It is likely in adjacent British Columbia. This association appears in valley bottoms on sites that occasionally flood, are seasonally saturated, and where the water table lowers to two or more feet below the soil surface. It typically has an open canopy of <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i> trees. <i>Tsuga heterophylla</i> may be a member of the canopy. Early seral tree species are rare. The subcanopy and tree seedling layer always contains <i>Abies lasiocarpa</i> and often contains <i>Picea engelmannii</i>. The undergrowth layer is dominated by a 1-m or taller deciduous shrub layer composed of a mixture of <i>Rhododendron albiflorum</i> and/or <i>Menziesia ferruginea</i> often with <i>Vaccinium membranaceum</i>. The trailing woody vine <i>Rubus pedatus</i> is frequently a part of the ground cover. <i>Senecio triangularis</i> is always present although usually not abundant. Other frequently occurring forbs are <i>Mitella pentandra, Tiarella trifoliata var. unifoliata, Trautvetteria caroliniensis</i>, and <i>Athyrium filix-femina</i>. Ground cover is sometimes dominated by the fern <i>Gymnocarpium dryopteris</i>. Moss cover commonly contributes to ground cover. |
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