| Add/Drop |
Name
|
Reference
|
Plots↓
|
Description |
Comm #12271
|
CEGL003053 » more details
accession code: VB.CC.5264.CEGL003053
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|
Comm #12272
|
Pinus strobus - (Pinus resinosa) Driftless Bluff Forest » more details
accession code: VB.CC.36891.CEGL002378
|
Midwestern Ecology Working Group... |
0
|
This pine bluff forest occurs on steep sandstone or, rarely, limestone bluffs in the Driftless Area of the upper midwestern United States. Stands occur in small patches 0.1-2 ha in size. The soils are shallow, poorly developed, and often acidic. Runoff and leaching are severe due to the slope and the porous nature of the bedrock. <i>Pinus strobus</i> typically dominates the overstory, with <i>Pinus resinosa</i> and <i>Tsuga canadensis</i> either present or locally dominant. Other hardwood associates include <i>Betula papyrifera, Populus tremuloides, Quercus alba, Quercus velutina, Ostrya virginiana</i>. The composition of the understory is variable but typically contains herbs and shrubs with more northerly distributions, such as <i>Diervilla lonicera, Vaccinium myrtilloides, Eurybia macrophylla (= Aster macrophyllus), Chimaphila umbellata, Gaultheria procumbens, Lycopodium obscurum, Mitchella repens, Pyrola americana (= Pyrola rotundifolia)</i>, and <i>Trientalis borealis</i>, as well as some prairie species, including <i>Amorpha canescens, Coreopsis palmata</i>, and <i>Dodecatheon meadia</i>. This community is a relict, thought to have existed in the Driftless Area since at least the Wisconsin glaciation. |
Comm #12273
|
Artemisia arbuscula ssp. longicaulis - Grayia spinosa Shrubland » more details
accession code: VB.CC.34641.CEGL002984
|
Western Ecology Working Group of... |
0
|
This shrubland association is characterized by codominance of <i>Artemisia arbuscula ssp. longicaulis</i> and <i>Grayia spinosa</i>. It has been observed on upper alluvial fans coming out of the Virginia Range on the east side of Reno, Nevada. The vegetation included abundant <i>Bromus tectorum</i>, which may be included in the association name to distinguish this from a similar, likely association with <i>Elymus elymoides</i> dominating a graminoid layer. Even in the degraded shrubland where this has been observed, mosses had substantial ground cover under and immediately surrounding many of the shrubs. |
Comm #12274
|
Sandstone Great Lakes Shore Cliff Sparse Vegetation » more details
accession code: VB.CC.36815.CEGL002503
|
Midwestern Ecology Working Group... |
0
|
This sandstone cliff community is found in the northern Great Lakes shorelines of the United States and Canada. The substrate is Precambrian sandstone, which in Michigan is exposed along the southern shoreline of Lake Superior. Cliffs rise up over 50 m in places. Species composition varies somewhat, depending on sandstone type, but sandstone cliffs are very low in botanical diversity for a variety of reasons, including lack of soil for rooting, droughtiness on much of the rock surface, exposure to waves and ice, and in some places, unstable surface prone to wave erosion. Some portions of the cliff are moist from small streams or seepages. Jacobsville sandstone has cliff faces that are largely unvegetated, with mosses, lichens, and herbs concentrated in seeps and streams. Two common herbs are <i>Sagina procumbens</i> and <i>Stellaria calycantha</i>. <i>Pinguicula vulgaris</i> also grows on moist cliffs. |
Comm #12275
|
CEGL000878 » more details
accession code: VB.CC.3482.CEGL000878
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|
Comm #12276
|
CEGL002615 » more details
accession code: VB.CC.5023.CEGL002615
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|
Comm #12277
|
CEGL001342 » more details
accession code: VB.CC.3928.CEGL001342
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|
Comm #12278
|
CEGL001343 » more details
accession code: VB.CC.3929.CEGL001343
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|
Comm #12279
|
Pinus edulis - Juniperus osteosperma / Pleuraphis jamesii Woodland » more details
accession code: VB.CC.32018.CEGL002379
|
Western Ecology Working Group of... |
0
|
This rare woodland association is currently documented only from Capitol Reef National Park in southeastern Utah; this summary is derived from plots sampled in the park in 1986 and 2005. It occurs on pediment surfaces cut into ridges and hills between 1950 and 2020 m (6400-6625 feet) elevation. Parent materials include basalt alluvium or colluvium overlying Moenkopi siltstone that is occasionally exposed. Soils are rapidly drained and fine-textured. Total vegetation cover is around 30%. The vegetation is characterized by an open canopy of <i>Pinus edulis</i> and <i>Juniperus osteosperma</i> trees with between 5 and 15% cover and an understory dominated by <i>Pleuraphis jamesii</i> with up to 10% cover. Shrubs do not form a layer (<5% total cover), but scattered individuals of <i>Gutierrezia sarothrae, Atriplex confertifolia, </i><i>Shepherdia rotundifolia, Chrysothamnus viscidiflorus</i>, and <i>Ephedra torreyana</i> are commonly present. Associated herbaceous species include <i>Achnatherum hymenoides</i><i>, Bouteloua gracilis, Hesperostipa comata</i>, and a variety of forbs with sparse cover. |
Comm #12280
|
CEGL002406 » more details
accession code: VB.CC.4851.CEGL002406
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|