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Reference
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Description |
Comm #7651
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Quercus garryana var. breweri Shrubland [Placeholder]
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accession code: VB.CC.19536.QUERCUSGARRYANA
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Western Ecology Working Group of... |
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Comm #7652
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II.A.3.N.b
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accession code: VB.CC.447.IIA3NB
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EcoArt 2002 |
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Comm #7653
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Sarcocornia perennis - (Distichlis spicata, Spartina alterniflora) Tidal Dwarf-shrubland Alliance
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accession code: VB.CC.28259.SARCOCORNIAPERE
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Eastern Ecology Working Group of... |
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Tidally flooded hypersaline flats or very shallow depressions, dominated by halophytic herbs, including Sarcocornia perennis, Salicornia bigelovii, Salicornia virginica, Distichlis spicata, and stunted Spartina alterniflora. Total vegetative cover is quite variable in pannes, from near total absence of vascular plants to a dense cover of Salicornia bigelovii, Salicornia virginica, Sarcocornia perennis, or Spartina alterniflora. Limonium carolinianum is another common associate. In the southern portions of its distribution, Monanthochloe littoralis and Batis maritima can be major components. Algal mats are characteristically present, visible even in densely vegetated pannes. Blue-green algae are an important component of this community, in some cases contributing significantly more biomass than do vascular species. The following algae were noted to occur in association with Spartina alterniflora in the littoral zone of a Massachusetts salt marsh: Oscillitoria subuliforms, Oscillitoria amphibia, Lyngbea spp., Microcoleus chthonoplastes, Nodularia harveyana, Hydrocoleum lyngbyaceum, Symploca spp. (Webber 1967). Diagnostic species are Salicornia bigelovii, Salicornia virginica, and Sarcocornia perennis. Vegetation of this alliance tends to develop in shallow depressions within high salt marshes where drainage is poor. The depressions are flooded by high tides but as the water evaporates during low tide the salinity concentration increases forming 'salt pannes.' Formation of the pannes may result from ice scouring, rafting flotsam, peat compaction, or by mosquito ditch levees which create small impoundments. This community is regularly to irregularly flooded by nearby brackish water. Bare peat and/or mucky soils are prevalent (up to 85% bare soils), and standing water covers this community at high tide. |
Comm #7654
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CEGL007812
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accession code: VB.CC.7406.CEGL007812
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7655
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Artemisia nova / Poa fendleriana Shrubland
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accession code: VB.CC.22208.ARTEMISIANOVAPO
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Western Ecology Working Group of... |
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This association has only been described from Zion National Park. Until further inventory is completed there is no global information. |
Comm #7656
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CEGL007778
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accession code: VB.CC.7374.CEGL007778
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #7657
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CEGL001755
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accession code: VB.CC.4313.CEGL001755
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #7658
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CEGL007443
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accession code: VB.CC.7128.CEGL007443
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7659
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Selaginella rupestris - Schizachyrium scoparium - Hypericum gentianoides - Bulbostylis capillaris Herbaceous Vegetation
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accession code: VB.CC.35149.CEGL007690
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Southeastern Ecology Working Gro... |
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This association includes vegetation found on granitic exfoliation domes of the Piedmont and lower elevation portions of the Blue Ridge. It occurs on gently sloping to steep exposures of smooth, exfoliating granite or similar massive igneous or metamorphic rock, such as granitic gneiss. The substrate has few cracks or irregularities for soil accumulation, and most of the areal extent is bare rock. This association typically occurs at elevations below 915 m (3000 feet) but may be found at slightly higher elevations. This community occurs in large patches, ranging in size from a few acres to over 100 acres. Vegetation consists primarily of lichens on bare rock or of shallow mats generally dominated by <i>Selaginella rupestris</i> occurring with other distinctive species. Woody species from adjacent woodlands and shrublands may be scattered components, rooted in deeper soil pockets, older stable vegetation mats, and in marginal zones between the exposed rock and adjacent forests. <i>Selaginella rupestris</i> is almost always a major dominant of the vegetation mats. However, distribution of <i>Selaginella rupestris</i> can be spotty, so there are examples of this association that do not contain this species. Other characteristic herbaceous species are <i>Baptisia tinctoria, Cheilanthes lanosa, Coreopsis major, Corydalis sempervirens, Danthonia sericea, Lindernia monticola, Phlox nivalis, Schizachyrium scoparium, Scleria triglomerata</i>, and <i>Talinum teretifolium</i>. Common woody species include <i>Carya pallida, Chionanthus virginicus, Fraxinus americana, Juniperus virginiana, Kalmia latifolia, Pinus echinata, Pinus rigida, Quercus prinus (= Quercus montana), Rhododendron minus, Ulmus alata</i>, and <i>Vaccinium stamineum</i>. |
Comm #7660
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Hypericum fasciculatum - Hypericum chapmanii / Aristida palustris - Sarracenia (flava, psittacina) Shrubland
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accession code: VB.CC.20778.HYPERICUMFASCIC
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Southeastern Ecology Working Gro... |
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This association, found in the western panhandle of Florida, occurs in seasonally flooded wetlands in an ecotone between herbaceous-dominated prairies/savannas and cypress stringers. It is a semi-open shrubland dominated by Hypericum chapmanii, Hypericum fasciculatum, and Hypericum brachyphyllum. The dominant herbaceous species is Aristida palustris. Lobelia paludosa, Sarracenia flava, Sarracenia psittacina, and Rhynchospora macra are also abundant and characteristic. Sparse, short-statured stems of Taxodium ascendens may also be present. |
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