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Name
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Reference
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Plots↓
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Description |
Comm #321
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Abies amabilis - Tsuga heterophylla / (Orthilia secunda - Chimaphila menziesii) Forest [Proposed]
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:1-{6F500258-B5B3-442A-B036-118865FE30BD}
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Ramm-Granberg 2020 |
56
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NVC Code CEGL008232 |
Comm #322
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Heteromeles arbutifolia - Malosma laurina Shrubland
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accession code: VB.CC.37463.CEGL003692
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55
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This shrubland association occurs on somewhat steep to very steep northeast- and northwest-facing slopes at low elevations between 50 and 584 m. It is characterized by a dominance of <i>Heteromeles arbutifolia</i> with a subdominance of <i>Malosma laurina</i> and several other species of lower average cover in the shrub layer. The herbaceous layer is not well-characterized. The emergent tree layer occasionally includes both <i>Quercus agrifolia</i> and <i>Juglans californica</i>. |
Comm #323
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Crested Wheatgrass Semi-natural Herbaceous Alliance
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accession code: VB.cc.29977.CRESTEDWHEATGRA
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NVC 2004 |
55
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Comm #324
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Abies lasiocarpa - Picea engelmannii / Salix drummondiana Swamp Forest
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accession code: urn:lsid:vegbank.org:commConcept:29236-{619AB2B4-27F2-4D37-86BF-9B3FBE9641F4}
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NatureServe Biotics 2019 |
55
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This heavily forested spruce-fir riparian association occurs in the San Juan Mountains and southern Rocky Mountains in Colorado. It occurs along steep, narrow first-order streams above 2700 m (9000 feet) elevation where <i>Abies lasiocarpa - Picea engelmannii</i> forests also occur on adjacent hillslopes. Soils are typically shallow (<1 m deep) sandy loams to sandy clay loams packed between large angular boulders and cobbles with a thin layer of partially decomposed organic matter under the litter layer. The canopy can be dense, with up to 90% cover of <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i>. Occasional canopy associates can include <i>Picea pungens</i> at wet, low-elevation sites and <i>Pinus contorta</i> in drier, early-seral stands. <i>Populus tremuloides</i> may also occur sporadically. Tall <i>Salix drummondiana</i> and <i>Alnus incana</i> grow in a thick band along the edge of the stream depending on elevation; at higher elevations, <i>Salix drummondiana</i> is dominant and <i>Alnus incana</i> is rare, whereas at lower elevations, <i>Alnus incana</i> is more abundant than <i>Salix drummondiana</i>, but at mid elevations, the two shrubs can be codominant. Shrub associates that occur with less frequency include <i>Cornus sericea, Salix brachycarpa, Salix planifolia, Salix monticola, Salix bebbiana</i>, and <i>Lonicera involucrata</i>. The herbaceous layer is diverse and dominated by forbs; species can include <i>Heracleum maximum, Mertensia ciliata, Senecio triangularis</i>, and <i>Streptopus amplexifolius var. chalazatus</i>, among many others. |
Comm #325
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Carex aquatilis Wet Meadow
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accession code: urn:lsid:vegbank.org:commConcept:30711-{6FEB0400-06E6-4D0E-AB26-94A036AF5BAC}
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NatureServe Biotics 2019 |
55
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This common, widespread herbaceous vegetation occurs as large, mesic meadows in high montane valleys or as narrow strips bordering ponds and streams at lower elevations throughout the western U.S. It occurs in a variety of environmental settings in the montane and subalpine zones. Some of the largest expanses occur in broad, low-gradient valleys where large snowmelt-fed swales and slopes dominate the landscape. It can also grow in fine sediments at the margins of lakes and beaver ponds. Presence of <i>Carex aquatilis</i> typically indicates wet soils with high organic matter or histic epipedons. This plant association is characterized by a dense rhizomatous meadow of <i>Carex aquatilis</i> (10-80% cover), usually accompanied by a few other graminoids species such as <i>Calamagrostis canadensis, Deschampsia cespitosa, Juncus arcticus ssp. littoralis</i>, and <i>Poa palustris</i>. <i>Eleocharis quinqueflora</i> can be abundant on organic substrates at high elevations. Woody species rarely occur in these sites. A clear dominance by <i>Carex aquatilis</i> and low cover of <i>Carex utriculata</i> or <i>Pedicularis groenlandica</i> set this plant association apart from closely related types. |
Comm #326
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Acer rubrum - Fraxinus pennsylvanica / Saururus cernuus Swamp Forest
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accession code: urn:lsid:vegbank.org:commConcept:35227-{27065FE7-0386-4CB7-B95A-0CD8977B986D}
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NatureServe Biotics 2019 |
55
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This red maple swamp community of the Mid-Atlantic Coastal Plain of the Chesapeake Bay and Piedmont regions occurs on poorly drained to very poorly drained soils on flats and along watercourses that are seasonally to semipermanently flooded. The organic horizon is of variable depth and overlies sandy or silt clay loam soils. This swamp has pronounced hummock-and-hollow microtopography. The tree canopy is closed to partially open and dominated by <i>Acer rubrum</i> and <i>Fraxinus pennsylvanica</i>. Other canopy associates may include <i>Nyssa sylvatica, Liquidambar styraciflua, Ulmus americana, Quercus lyrata, Quercus phellos, Quercus lyrata</i>, and <i>Populus heterophylla</i>. The shrub layer includes <i>Lindera benzoin, Eubotrys racemosa, Ilex verticillata, Viburnum</i> spp., and <i>Fraxinus pennsylvanica</i> saplings. The herb layer is characterized by <i>Saururus cernuus, Peltandra virginica, Boehmeria cylindrica, Triadenum walteri, Cinna arundinacea, Pilea pumila, Impatiens capensis, Osmunda regalis, Leersia oryzoides, Leersia virginica, Glyceria striata, Commelina virginica, Rumex verticillatus, Carex</i> spp., and <i>Polygonum arifolium</i>. |
Comm #327
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Picea rubens - (Abies fraseri) / Vaccinium erythrocarpum / Dryopteris campyloptera / Hylocomium splendens Forest
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accession code: urn:lsid:vegbank.org:commConcept:35435-{53679246-8E15-41DF-8962-94A17A50B34F}
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NatureServe Biotics 2019 |
55
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This community is restricted to the highest mountain systems of the Southern and Central Appalachians in eastern Tennessee, western North Carolina, and southwestern Virginia, with disjunct northern outliers on the summits of the Allegheny Mountains of West Virginia. It is found on all topographic positions and is best developed between 1680 and 1990 m (5500-6200 feet) elevation. In West Virginia, it occurs on ridgetops at elevations above 1350 m (4400 feet), and at lower elevation (1140 m) in a cold streambottom. This association includes forests of the Southern and Central Appalachians, primarily within the range of <i>Abies fraseri</i>, dominated by <i>Picea rubens</i>, with or without <i>Abies fraseri</i>, occurring over deciduous shrubs, herbs and bryophytes. This community has a characteristic understory of Southern Appalachian endemic species and a conspicuous bryophyte layer. The tree canopy may have standing dead stems of <i>Abies fraseri</i> and extensive patches of <i>Abies fraseri</i> seedlings in canopy gaps. Characteristic species include <i>Sorbus americana, Acer spicatum, Viburnum lantanoides, Athyrium filix-femina ssp. asplenioides, Eurybia chlorolepis, Rugelia nudicaulis, Houstonia serpyllifolia, Solidago glomerata, Ptilium crista-castrensis</i>, and <i>Bazzania trilobata</i>. |
Comm #328
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BLACK SAGEBRUSH DWARF-SHRUB HERBACEOUS ALLIANCE
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accession code: VB.cc.29917.BLACKSAGEBRUSHD
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NVC 2004 |
54
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Comm #329
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Artemisia tridentata ssp. tridentata Shrub Herbaceous Alliance
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accession code: VB.cc.29865.ARTEMISIATRIDEN
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NVC 2004 |
54
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Comm #330
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Juniperus virginiana var. silicicola - Zanthoxylum clava-herculis - Quercus virginiana - (Sabal palmetto) / Sageretia minutiflora Woodland
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accession code: urn:lsid:vegbank.org:commConcept:32398-{64AE8DEA-B486-4639-BD5E-6E631BF7207F}
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NatureServe Biotics 2019 |
54
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This calciphilic community occurs on calcareous coastal sands, shell hashes, Amerindian shell middens, and natural shell deposits, from mid-peninsular Florida (Cape Canaveral) north to South Carolina (southern Atlantic Coast), in maritime-influenced landscapes. The canopy consists of <i>Juniperus virginiana var. silicicola, Sabal palmetto, Celtis laevigata var. laevigata, Zanthoxylum clava-herculis, Quercus virginiana, Osmanthus americanus</i>, and other species. Shrubs are prominent and may include <i>Ilex vomitoria, Yucca aloifolia, Sageretia minutiflora, Sideroxylon tenax, Forestiera segregata, Frangula caroliniana, Opuntia austrina</i>, and others. Composition is very variable from site to site, depending on environmental conditions and accidents of establishment and persistence. |
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