| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #8071
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III.B.2.N.g
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accession code: VB.CC.758.IIIB2NG
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EcoArt 2002 |
0
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Comm #8072
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V.A.2.N.i
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accession code: VB.CC.629.VA2NI
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EcoArt 2002 |
0
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Comm #8073
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Pinus ponderosa / Prunus virginiana Forest
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accession code: VB.CC.36887.CEGL000192
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Midwestern Ecology Working Group... |
0
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This community type is found in the Black Hills and northeastern Rocky Mountains, and western Great Plains escarpments of the United States. It occurs on gentle to moderate (2-40%), north-facing slopes and close to streams. A few stands are on rolling uplands. The soils are sandy loam or loam. This forest community has a closed canopy of <i>Pinus ponderosa</i>. Seedlings and saplings of <i>Crataegus succulenta</i> and <i>Fraxinus pennsylvanica</i> are often scattered in the understory. These species may grow to be mature trees near streams. There are two shrub layers in this community. The most prominent layer is approximately 1 m tall and dominated by <i>Prunus virginiana</i>. <i>Amelanchier alnifolia</i> also contributes significantly to this layer. The lower shrub layer is approximately 50 cm tall. It is dominated by <i>Mahonia repens</i> with lesser amounts of <i>Juniperus communis, Ribes missouriense, Rosa woodsii, Symphoricarpos albus</i>, and <i>Toxicodendron rydbergii</i>. The diversity of forbs is moderate, but most of the coverage of the herbaceous layer is provided by graminoids. <i>Apocynum androsaemifolium, Elymus caninus, Carex inops ssp. heliophila, Galium boreale, Schizachne purpurascens</i>, and <i>Maianthemum stellatum</i> are typical components of the herbaceous layer. |
Comm #8074
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Pinus ponderosa / Purshia tridentata / Carex inops ssp. inops Forest
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accession code: VB.CC.33188.CEGL000193
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Western Ecology Working Group of... |
0
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This forest is endemic to the eastern Cascades of central Oregon. It is found on a narrow elevational belt between 1500-1800 m (4900-5900 feet) on level slopes (1-10%) of all aspects. Soils are loamy coarse sand to sandy loams which are well-drained. It is possible that it occurs in deep, recent pumice outcrops in northern California, but it has not been documented there. <i>Pinus ponderosa</i> (10-40% cover) and <i>Pinus contorta</i> (1-20% cover) partially shade an understory of <i>Purshia tridentata</i> (7-40% cover), <i>Achnatherum occidentale ssp. occidentale (= Stipa occidentalis)</i> (trace-10% cover), and the diagnostic species, <i>Carex inops ssp. inops</i>. Other plants which may be present include <i>Arctostaphylos patula, Ceanothus velutinus, Carex rossii, Elymus elymoides ssp. elymoides (= Sitanion hystrix), Achillea millefolium, Eriogonum umbellatum</i>, and <i>Machaeranthera canescens (= Aster canescens)</i>. This association is well-adapted to periodic fires. |
Comm #8075
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Pinus ponderosa / Purshia tridentata / Achnatherum hymenoides Woodland
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accession code: VB.CC.33198.CEGL000196
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Western Ecology Working Group of... |
0
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<i>Pinus ponderosa</i> dominates the tree layer of this open woodland. Scattered individuals of <i>Juniperus occidentalis</i> and occasional patches of dense <i>Pinus ponderosa</i> saplings can occur. The poorly developed understory is dominated by <i>Purshia tridentata</i> (4% cover). Trace amounts of <i>Chrysothamnus viscidiflorus</i> and <i>Artemisia tridentata</i> are present. The herbaceous layer is very sparse and dominated by perennial bunchgrasses that total about 5%. Grasses can include <i>Achnatherum hymenoides (= Oryzopsis hymenoides), Poa secunda, Festuca idahoensis, Elymus elymoides</i>, and <i>Stipa</i> sp. Perennial forbs contribute less than 1% cover. |
Comm #8076
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Pinus ponderosa / Purshia tridentata / Pseudoroegneria spicata Woodland
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accession code: VB.CC.33185.CEGL000197
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Western Ecology Working Group of... |
0
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This woodland occurs in the eastern Cascades of Oregon and Washington, the Blue Mountains in eastern Oregon and adjacent Idaho, and California's Modoc Plateau. It has been described as a phase in Idaho and Montana and may be present there. Elevations vary between 460 and 1650 m (1500-5400 feet) on all aspects and slopes of 0-40%. Soils are gravelly loamy sand to fine sandy loam. Blue Mountains sites tend to be steep while Modoc occurrences are on relatively level lava tube benches on rolling basalt plateaus. <i>Pinus ponderosa</i> is the only tree and covers 5-47% over <i>Purshia tridentata</i> (1-21% cover). <i>Pseudoroegneria spicata</i> and <i>Festuca idahoensis</i> cover 1-20%. The former is more abundant on steep and stony sites. The later is absent from California stands. Species of lesser importance include <i>Achillea millefolium, Lomatium triternatum</i>, and <i>Lathyrus nevadensis</i>. Fires have historically maintained <i>Pinus ponderosa</i> while thinning <i>Purshia tridentata</i> and <i>Juniperus occidentalis</i>. Overgrazed and other disturbed sites have high amounts of <i>Bromus tectorum</i>. |
Comm #8077
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Pinus clausa / Ceratiola ericoides / Cladonia spp. Woodland
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accession code: VB.CC.25738.PINUSCLAUSACERA
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Southeastern Ecology Working Gro... |
0
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This scrub community of the Florida panhandle coast has an emergent layer of Pinus clausa above a patchy shrub layer dominated by Ceratiola ericoides. Bare soil is common, and herbaceous species are generally absent. Patches of Cladonia species form the ground layer. |
Comm #8078
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Pinus cembroides - Quercus grisea / Agave lechuguilla / Bouteloua curtipendula Woodland
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accession code: VB.CC.25428.PINUSCEMBROIDES
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Southeastern Ecology Working Gro... |
0
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This is a very dry Pinus cembroides - Quercus grisea woodland, occurring on igneous rock in the Chisos Mountains of Trans-Pecos Texas. Cover is sparse. Other species include Juniperus deppeana, Juniperus flaccida, Fouquieria splendens, Dasylirion leiophyllum, Rhus trilobata, Opuntia spp., Heteropogon contortus, and Schizachyrium scoparium var. scoparium (= Schizachyrium scoparium ssp. neomexicanum). |
Comm #8079
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CEGL007124
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accession code: VB.CC.6983.CEGL007124
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EcoArt 2002 |
0
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Comm #8080
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CEGL007128
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accession code: VB.CC.6984.CEGL007128
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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