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Reference
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Description |
Comm #5861
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Pinus leiophylla Woodland Alliance
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accession code: VB.CC.17871.PINUSLEIOPHYLLA
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Western Ecology Working Group of... |
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This woodland alliance occurs in mountains below the Mogollon Rim in southeastern Arizona, southwestern New Mexico and northern Mexico. Sites range from mesic, nearly level washes, stream terraces and toeslopes to very steep, rocky, xeric, mountain slopes. Aspect is variable depending on elevation. Soils range from moderately deep alluvium to shallow, lithic colluvium and residuum. Woodlands included in this alliance are characterized by a moderately sparse upper tree canopy, typically 10-20 m tall, with a moderately dense subcanopy. The upper canopy is dominated by Pinus leiophylla. Scattered Pinus ponderosa or Pseudotsuga menziesii may be present in higher elevation stands. The subcanopy is a mixture of trees, such as Juniperus deppeana, Juniperus monosperma, Pinus discolor, or Madrean encinals, such as Quercus arizonica, Quercus emoryi or Quercus hypoleucoides. Mesic semi-riparian sites may include scattered individuals of Cupressus arizonica, Juglans major, Fraxinus velutina, Platanus wrightii, or Prunus serotina. The shrub layer is typically sparse depending on the density of the tree canopy. Shrub associates include Agave spp., Arbutus arizonica, Arctostaphylos spp., Ceanothus fendleri, Fallugia paradoxa, Garrya wrightii, Nolina microcarpa, Opuntia spp., Quercus spp., Rhus aromatica, Yucca schottii, and immature trees species. The herbaceous layer is composed primarily of perennial graminoids, particularly Aristida schiedeana var. orcuttiana (= Aristida orcuttiana), Cyperus spp., Koeleria macrantha, Muhlenbergia spp., Panicum bulbosum, Piptochaetium fimbriatum, Schizachyrium cirratum, and Piptochaetium pringlei (= Stipa pringlei). Forb diversity may be high, but cover is low. Some of the more common forbs include Artemisia ludoviciana, Brickellia lemmonii, Erigeron neomexicanus, Gnaphalium spp., Penstemon barbatus, Packera neomexicana (= Senecio neomexicanus), and Solidago wrightii. Diagnostic of this woodland alliance is the tree canopy dominated byPinus leiophylla. |
Comm #5862
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Serie de Blepharocalyx salicifolius - Podocarpus glomeratus
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accession code: urn:lsid:vegbank.org:commConcept:37064-{32B85C4F-D269-4C6F-98D4-9E351123D90A}
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NatureServe Biotics 2019 |
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Supratropical inferior y mesotropical superior pluviestacional húmedo, 2800-3300 m. El dosel del bosque alto, siempre verde estacional, está dominado por <i>Podocarpus glomeratus (= Podocarpus cardenasii)</i>. Combinación florística diferencial: <i>Blepharocalyx salicifolius, Cedrela lilloi, Cervantesia bicolor, Duranta mandoni, Hesperomeles lanuginosa, Myrsine pseudocrenata, Oreopanax pentlandianus, Oreopanax thaumasiophyllus, Podocarpus glomeratus, Weinmannia microphylla</i> y <i>Weinmannia lechleriana</i>. Mayores áreas potenciales y/o actuales conocidas: Dept. Cochabamba (Prov. Ayopaya) y Dept. La Paz (Prov. Inquisivi), Yungas del Cotacajes (Cordillera de Ayopaya e Independencia). |
Comm #5863
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Quercus nigra - Quercus (alba, phellos) Forest
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accession code: VB.CC.35331.CEGL004979
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Southeastern Ecology Working Gro... |
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This forest is found on poorly drained, flat bottomlands of intermittent streams and depressional areas in otherwise flat alluvial floodplains of the Interior Low Plateau of Tennessee; the soils are formed on recent alluvium. <i>Quercus nigra</i> is typically the dominant species of this temporarily flooded forest; the most common associates are <i>Quercus alba</i> and <i>Quercus phellos</i>. Some examples have <i>Quercus lyrata</i> as a dominant or codominant. Other canopy species can include <i>Quercus pagoda</i> (especially to the south), <i>Quercus michauxii, Quercus shumardii, Quercus palustris</i> (in northerly examples), <i>Ulmus americana, Carya alba, Carya glabra, Carya ovata, Nyssa biflora, Liquidambar styraciflua, Liriodendron tulipifera, Celtis</i> spp., <i>Acer rubrum, Platanus occidentalis, Prunus serotina</i>, and others. The variability of canopy species composition from occurrence to occurrence may be relatively large. <i>Pinus taeda</i> could be occasionally present in the canopy as an invader from nearby plantations. Subcanopy and shrub species include <i>Carpinus caroliniana, Cornus florida, Acer negundo, Acer saccharinum, Salix nigra, Alnus serrulata, Ilex opaca</i>, and <i>Itea virginica</i>, among others. Woody vines are an important component of this community and include <i>Toxicodendron radicans, Campsis radicans, Bignonia capreolata, Smilax rotundifolia, Parthenocissus quinquefolia, Vitis</i> spp., and others. Herbs typically include <i>Triadenum walteri, Osmunda cinnamomea, Impatiens capensis</i>, and <i>Carex</i> spp. Exotics such as <i>Ligustrum sinense, Lonicera japonica</i>, and <i>Microstegium vimineum</i> increase following disturbance. |
Comm #5864
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Quercus rubra - Tsuga canadensis - Liriodendron tulipifera / Hamamelis virginiana Forest
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accession code: VB.CC.31283.CEGL006566
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Eastern Ecology Working Group of... |
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This closed-canopy, dry-mesic deciduous forest occurs on deep, moist to well-drained loams and silt loams on northern and eastern midslopes and coves. The canopy is dominated by a variety of oaks, hickories and conifers, including <i>Quercus rubra, Acer saccharum, Fagus grandifolia, Quercus alba, Quercus velutina, Betula lenta, Carya alba (= Carya tomentosa), Fraxinus americana</i>, and <i>Liriodendron tulipifera</i>, with notable presence of <i>Tsuga canadensis</i> and/or <i>Pinus strobus</i>. The subcanopy and shrub layer consists of <i>Ostrya virginiana, Carpinus caroliniana, Kalmia latifolia, Hamamelis virginiana, Vaccinium pallidum, Amelanchier laevis, Lindera benzoin, Viburnum acerifolium</i>, and <i>Viburnum recognitum</i>. The herbaceous layer is characterized by <i>Maianthemum racemosum (= Smilacina racemosa), Gaultheria procumbens, Mitchella repens, Chimaphila maculata, Thelypteris noveboracensis, Dennstaedtia punctilobula, Maianthemum canadense</i>, and <i>Podophyllum peltatum</i>. |
Comm #5865
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Pinus ponderosa / Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Woodland
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accession code: VB.CC.32955.CEGL000179
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Western Ecology Working Group of... |
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These woodlands are open, sparse woodlands on isolated sand dunes and sandy flats. There are only two known occurrences, from the northern Great Basin, one in Oregon and one in California. They represent isolated <i>Pinus ponderosa</i> forests in sagebrush habitats, which are apparently Pleistocene relicts from a more mesic environment. The canopy is dominated by <i>Pinus ponderosa</i> at fairly low cover (averaging 4% canopy cover), making this a shrubland with scattered trees. On the margins, occasional <i>Juniperus occidentalis</i> individuals represent the only other tree found, and in patches these can be codominant. The majority of the shrub cover is from <i>Artemisia tridentata ssp. wyomingensis</i> and <i>Chrysothamnus viscidiflorus</i>. Dominant grasses are <i>Hesperostipa comata (= Stipa comata), Achnatherum thurberianum (= Stipa thurberiana), Achnatherum hymenoides (= Oryzopsis hymenoides), Poa secunda</i>, and <i>Elymus elymoides</i>. This is the only <i>Pinus ponderosa</i> association with <i>Artemisia tridentata</i> and <i>Hesperostipa comata</i> found on sandy habitats. ~<i>Pinus ponderosa / Artemisia tridentata</i> ssp. <i>vaseyana / Poa nervosa</i> Woodland (CEGL000180)$$ has been described from higher elevations and silty soils. |
Comm #5866
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(Hydrangea spp., Philadelphus spp.) / Heuchera spp. Herbaceous Alliance
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accession code: VB.CC.18133.HYDRANGEASPPPHI
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Southeastern Ecology Working Gro... |
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This alliance contains vegetated, dry to moist, basic cliffs of variable geology, with vegetation composition variable and often with a mixed and variable physiognomy. Individual occurrences may be herb-dominated, shrub-dominated, or sparsely vegetated with vascular plants (though sometimes with dense patchy cover of mosses, hepatics, or lichens). Characteristic shrubs are Hydrangea spp. (Hydrangea arborescens, Hydrangea cinerea, Hydrangea radiata), Philadelphus spp. (Philadelphus hirsutus, Philadelphus inodorus, Philadelphus pubescens), Toxicodendron radicans, Physocarpus opulifolius, and Ribes spp. (Ribes cynosbati). Characteristic herbs are Heuchera spp. (Heuchera americana var. americana, Heuchera americana var. hirsuticaulis, Heuchera americana var. hispida, Heuchera caroliniana, Heuchera villosa var. arkansana, Heuchera villosa var. villosa). Other species which are typical include Dichanthelium spp., Woodsia obtusa, Dryopteris spp., Cystopteris spp., Danthonia spicata, Deschampsia flexuosa, and others. Characteristic mosses include Anomodon attenuatus and Anomodon rostratus. The alliance is potentially widespread in the Southern Blue Ridge, Cumberlands and Southern Ridge and Valley, Interior Low Plateau, and Interior Highlands. This alliance is known from vertical and near-vertical exposures of limestone, siltstone, mudstone, calcareous sandstones, and may also occur on mafic metamorphic and igneous rocks. |
Comm #5867
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A.6
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accession code: VB.CC.2241.A6
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EcoArt 2002 |
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Lowland rainforests dominated by ~Diospyros revoluta, Mammea americana$, and ~Manilkara bidentata ssp. surinamensis$, occurring at low elevations in Puerto Rico (rare). |
Comm #5868
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Chamaecyparis nootkatensis Subalpine Parkland Woodland
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accession code: VB.CC.18074.CHAMAECYPARISNO
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Western Ecology Working Group of... |
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Comm #5869
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Quercus pungens - Cercocarpus montanus Shrubland
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accession code: VB.CC.35381.CEGL003832
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Southeastern Ecology Working Gro... |
0
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Comm #5870
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Ceratiola ericoides - Quercus geminata - Ximenia americana / Cladonia spp. - Cladina spp. Shrubland
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accession code: VB.CC.36108.CEGL003862
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Southeastern Ecology Working Gro... |
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This community is limited to ridges and dunes of the Florida peninsular coast. In this shrubland community <i>Ceratiola ericoides</i> is often present in nearly pure stands; scattered <i>Pinus clausa</i> and scrub oaks may be present. The herb layer is generally sparse and dominated by lichens (<i>Cladonia leporina, Cladonia prostrata, Cladina evansii</i>, and <i>Cladina subtenuis</i>). The white or light-colored sandy soils are well-drained and infertile. <i>Ceratiola ericoides</i> scrub is pyrogenic with fire frequencies of 30-40 years, depending on fuel availability and ignition sources. |
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