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Add/Drop	Name	Reference	Plots↓	Description
Comm #8421	Abies lasiocarpa - Picea engelmannii Ribbon Forest » more details accession code: VB.CC.22522.ABIESLASIOCARPA	Western Ecology Working Group of...	0
Comm #8422	Hawaiian Fumarole Herbaceous Vegetation » more details accession code: VB.CC.22538.HAWAIIANFUMAROL	Western Ecology Working Group of...	0
Comm #8423	Phragmites australis Western North America Temperate Semi-natural Herbaceous Vegetation » more details accession code: VB.CC.19112.PHRAGMITESAUSTR	Western Ecology Working Group of...	0	This reed marsh type is found across the west-temperate regions of the United States and Canada. Stands occur in semipermanently flooded marshes, ditches, impoundments, etc. that have often been disturbed by human activity. The vegetation is often variable, as Phragmites australis will often invade into existing natural or semi-natural communities present on the site. Once firmly established, this community is usually strongly dominated by Phragmites australis, with few or no other vascular plants present. In Colorado, this reed marsh often occurs in small wet patches in seeps and backwater areas of large floodplains, around the fringes of irrigation ponds, ditches, and along railroad embankments that have poor drainage. Stands have a dense, 1- to 1.5-m tall herbaceous layer dominated by the perennial graminoid Phragmites australis. Minor cover of associates such as Agrostis stolonifera, Carex spp., Conyza canadensis, Glycyrrhiza lepidota, Iva axillaris, Mentha arvensis, Schoenoplectus acutus (= Scirpus acutus), and Typha latifolia may be present.
Comm #8424	CEGL006357 » more details accession code: VB.CC.6853.CEGL006357 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #8425	Glyceria (grandis, striata) Seasonally Flooded Herbaceous Alliance » more details accession code: VB.CC.19253.GLYCERIAGRANDIS	Western Ecology Working Group of...	0
Comm #8426	CEGL004934 » more details accession code: VB.CC.6344.CEGL004934 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #8427	Pinus ponderosa / Quercus gambelii / Carex inops ssp. heliophila Woodland » more details accession code: VB.CC.31778.CEGL005372	Western Ecology Working Group of...	0	This coniferous woodland is known from Bandelier National Monument in north-central New Mexico and likely occurs on mesic sites elsewhere in the southern Rocky Mountains. Sites vary from mesatops and shoulders with low to moderate slopes (6-25%) to steep canyon slopes (50-65%); aspects vary from northwest through northeast at lower elevations to southerly on higher sites. Soils vary and are mapped as poorly-developed and rocky Entisols or Inceptisols derived from rhyolitic colluvium; fine-textured Alfisols and loamy Mollisols from rhyolite, dacite, or pumice slope alluvium; or simply as rock outcrop. The ground surface is characterized by scattered bunchgrasses and sedges intermixed with litter, and some sites are very rocky. Elevation ranges from 1980 to 2652 m (6500-8700 feet). Conifer canopy cover ranges from open (25%) to closed (&gt;60%). The overstory is dominated by <i>Pinus ponderosa</i> with seedlings and saplings present in the understory. <i>Pseudotsuga menziesii</i> can also be present in the canopy or as seedlings and saplings, but it is clearly subordinate, and other conifers are rare. The understory of this association is characteristically shrubby with <i>Quercus gambelii</i> well-represented to abundant as shrubs or mature trees. <i>Robinia neomexicana</i> and <i>Rosa woodsii</i> can also be abundant. The herbaceous layer is rich in species but variable in cover. Diagnostic and often abundant graminoids include <i>Carex inops ssp. heliophila</i> and other deer sedges (<i>Carex occidentalis, Carex rossii</i>, and <i>Carex wootonii</i>). Additional graminoids may include <i>Elymus elymoides, Koeleria macrantha, Muhlenbergia montana</i>, and <i>Poa fendleriana</i>. Forb composition, while diverse, is variable and usually less than 5% total cover. The most frequent and abundant forb species include <i>Achillea millefolium, Antennaria parvifolia, Artemisia carruthii, Artemisia ludoviciana, Erigeron subtrinervis, Heterotheca villosa, Lithospermum multiflorum</i>, and <i>Penstemon barbatus</i>.
Comm #8428	Celtis laevigata - (Zanthoxylum clava-herculis, Acacia farnesiana) / Vitis mustangensis Forest » more details accession code: VB.CC.24282.CELTISLAEVIGATA	Southeastern Ecology Working Gro...	0	This maritime community is known only from the Gulf Coast of Louisiana and possibly Texas. It is a salt-pruned dwarf forest/shrubland (2-6 m tall) dominated by Celtis laevigata, and sometimes codominated by Zanthoxylum clava-herculis and Acacia farnesiana (= Acacia smallii) with abundant Vitis mustangensis tying the shrubs together. Known examples are grazed and have a weedy herb layer with Ambrosia artemisiifolia, Ambrosia trifida, and others.
Comm #8429	Rhus aromatica - Celtis tenuifolia / Carex eburnea Shrubland » more details accession code: VB.CC.22678.RHUSAROMATICACE	Southeastern Ecology Working Gro...	0	This association contains open rocky shrubland vegetation known from limestone and other calcareous cliffs of Daniel Boone National Forest of Kentucky. Stands are dominated by Rhus aromatica and Celtis tenuifolia, with Carex eburnea as a characteristic herbaceous species. Some other shrubs which may be present include Frangula caroliniana, Physocarpus opulifolius, Viburnum prunifolium, Ptelea trifoliata, Paxistima canbyi, and Zanthoxylum americanum. In addition, Solidago sphacelata may be present. A `southern variant' may contain Hypericum frondosum.
Comm #8430	Quercus gambelii - Robinia neomexicana / Carex inops ssp. heliophila Shrubland » more details accession code: VB.CC.31753.CEGL005379	Western Ecology Working Group of...	0	This association is only known to occur at Bandelier National Monument in north-central New Mexico. The current description is based on data received from there and will be updated when additional inventory data are available. This association occurs on sites with moderate to high solar exposure that increases with elevation. Stands occur on steep canyon and mountain slopes (30-65% slope) to gently rolling mesatops (&lt;10%). Soils are mapped primarily as rocky but well-developed Mollisols or as poorly developed and rocky Inceptisols derived from latite, dacite, or rhyolitic tuff alluvium and colluvium parent materials. The ground surface is characterized by scattered bunchgrasses and sedges intermixed with litter, exposed soil, rock, and gravel; some sites are very rocky. This montane shrubland occurs across a wide elevational gradient between 1980 and 2900 m (6500-9550 feet). It typically occurs in burned areas that once supported pine and mixed conifer forests. Shrub cover can exceed 80% and is dominated by deciduous broadleaf <i>Quercus gambelii</i> and <i>Robinia neomexicana</i> (occasionally <i>Quercus gambelii</i> can be present as mature trees). Common to abundant shrub associates may include <i>Ceanothus fendleri, Physocarpus monogynus, Rosa woodsii, Rubus idaeus</i>, and <i>Symphoricarpos oreophilus</i>. Tree seedlings and saplings (including <i>Abies concolor, Pinus ponderosa</i>, and <i>Pseudotsuga menziesii</i>) may be present. The herbaceous layer is rich in species, but variable in cover (5-70%). Graminoids are most abundant with <i>Carex inops ssp. heliophila</i> and other deer sedges (<i>Carex geophila, Carex occidentalis</i>, and <i>Carex rossii</i>) diagnostic and often abundant. Common associates include <i>Koeleria macrantha</i> and <i>Poa fendleriana</i>. On sites that have been seeded following fire, <i>Agropyron cristatum, Bromus catharticus, Bromus inermis, Elymus trachycaulus</i>, and <i>Pascopyrum smithii</i>, among others, can be common to abundant. While forbs are diverse, composition is variable from stand to stand, and cover is usually less than 5%.