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Name
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Reference
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Plots↓
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Description |
Comm #7071
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Triantha glutinosa - Parnassia glauca Saturated Herbaceous Alliance
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accession code: VB.CC.26943.TRIANTHAGLUTINO
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Eastern Ecology Working Group of... |
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This alliance includes herbaceous seepage communities that develop on the shores of larger rivers, where flood scouring maintains semi-open conditions and groundwater discharge supports a fen-like aspect. Shore substrate may be sandy, gravelly, or bedrock. Characteristic species include Triantha glutinosa (= Tofieldia glutinosa), Spiranthes spp., Parnassia glauca, and Carex hassei. Communities in this alliance are referred to locally as 'riverside seeps' and 'calcareous riverside seeps.' |
Comm #7072
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CEGL006199
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accession code: VB.CC.6738.CEGL006199
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #7073
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Metopium toxiferum - Eugenia foetida - Coccoloba uvifera - Thrinax morrisii / Erithalis fruticosa Forest
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accession code: VB.CC.21130.METOPIUMTOXIFER
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Southeastern Ecology Working Gro... |
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This community is a low (4-7 m in height), xeric forest with occasional emergent trees, occurring over limestone. Vegetation is dense with an abundance of low, branching stems. The tallest trees are typically Thrinax morrisii, Metopium toxiferum, Conocarpus erectus, Pinus elliottii var. densa and Guapira discolor. Other common trees include Manilkara jaimiqui ssp. emarginata, Piscidia piscipula, Eugenia foetida, Eugenia axillaris, Jacquinia keyensis, and Myrsine floridana. Canopy species, as well as Erithalis fruticosa, Byrsonima lucida, Ernodea littoralis, Chiococca parvifolia, and Randia aculeata may also occur as shrubs in the understory. Only a few shade-tolerant herbs are found beneath the dense forest cover. |
Comm #7074
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Muhlenbergia filipes Herbaceous Alliance
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accession code: VB.CC.21549.MUHLENBERGIAFIL
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Southeastern Ecology Working Gro... |
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This alliance includes moist interdune flats dominated or codominated by Muhlenbergia filipes, from around Nags Head, Dare County, North Carolina, south and west at least to the western coast of peninsular Florida; limits westward not known (the species goes to Texas). These communities are saturated at times, but the coarse sandy substrate drains quickly and are thus placed in upland. A widespread association is codominated by Muhlenbergia filipes, Spartina patens, and Eustachys petraea. Examples on Cayo Costa and North Captiva islands, Lee County, Florida, are dominated by Bouteloua hirsuta, with Muhlenbergia filipes, Uniola paniculata, and more typical southeastern Coastal Plain coastal species. Other characteristic species may include Ernodea littoralis, Chiococca parvifolia (= Chiococca pinetorum), Lantana depressa var. sanibelensis, Trichostema [sp. nov. ined.], Ambrosia hispida, Coccoloba uvifera, Smilax auriculata, Phyllanthus abnormis, and Panicum amarum var. amarulum. |
Comm #7075
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Quercus durata - Arctostaphylos glandulosa Shrubland
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accession code: VB.CC.31138.CEGL003351
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Western Ecology Working Group of... |
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This shrubland association is currently only known from Point Reyes National Seashore in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands are found at relatively high elevations (725-770 m [2370-2530 feet]) of Mount Tamalpais on mid to upper third of moderate to steep, rocky, southeast- to southwest-facing slopes. Soil textures are coarse loamy sand from serpentine rocks. This association forms dense stands that are dominated by <i>Quercus durata</i> and <i>Arctostaphylos glandulosa</i> in the shrub layer. Often found in this association are <i>Iris douglasiana, Toxicodendron diversilobum, Heteromeles arbutifolia, Frangula californica, Adenostoma fasciculatum, Eriodictyon californicum</i>, and <i>Baccharis pilularis</i>. Trees in this association may include shrubby <i>Umbellularia californica</i> and young or emergent <i>Pseudotsuga menziesii</i>. Other species that contribute to minor cover may include <i>Quercus chrysolepis, Pteridium aquilinum, Ceanothus cuneatus</i>, and <i>Arctostaphylos virgata</i>. |
Comm #7076
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Racomitrium lanuginosum Saturated Nonvascular Alliance
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accession code: VB.CC.22057.RACOMITRIUMLANU
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Western Ecology Working Group of... |
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Comm #7077
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III.C.3
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accession code: VB.CC.169.IIIC3
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EcoArt 2002 |
0
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Comm #7078
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CEGL007591
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accession code: VB.CC.7203.CEGL007591
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EcoArt 2002 |
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Comm #7079
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Acer rubrum / Rhododendron maximum Forest
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accession code: VB.CC.31084.CEGL006396
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Eastern Ecology Working Group of... |
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This red maple swamp of southern New England occurs in peaty depressions. <i>Acer rubrum</i> dominates the canopy. The understory is dominated by <i>Rhododendron maximum</i>. Other shrubs that may occur include <i>Rhododendron viscosum</i> and <i>Vaccinium corymbosum</i>. The herbaceous layer is poorly developed as a result of the thick evergreen shrub layer; herbs that may occur include <i>Carex folliculata, Cornus canadensis</i>, and <i>Gaultheria hispidula</i>. At least some occurrences have been altered from their original composition by the heavy logging of <i>Chamaecyparis thyoides</i>, but in others, <i>Chamaecyparis thyoides</i> has always been absent. |
Comm #7080
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Sporobolus (neglectus, vaginiflorus) - Aristida longispica - Panicum flexile - Panicum capillare Herbaceous Vegetation
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accession code: VB.CC.35140.CEGL004340
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Southeastern Ecology Working Gro... |
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This annual herbaceous community is a zonal component of Nashville Basin (Tennessee) and Moulton Valley (Alabama) Limestone Cedar Glades. Much of this vegetation is a mixture of annual grasses and perennial forbs, with enormous seasonal variation in dominance. Additional associations may be named. Relations with related vegetation in other ecoregions needs further investigation. Stands are dominated by <i>Sporobolus neglectus, Sporobolus vaginiflorus var. vaginiflorus</i>, and/or <i>Sporobolus vaginiflorus var. ozarkanus (= Sporobolus ozarkanus)</i>. Some of the co-occurring forbs are the endemic or near-endemic <i>Dalea gattingeri</i> and <i>Pediomelum subacaule</i>, along with <i>Croton capitatus, Grindelia lanceolata, Hedyotis nigricans var. nigricans, Heliotropium tenellum, Isanthus brachiatus, Manfreda virginica</i>, and <i>Ruellia humilis</i>. <i>Dalea gattingeri</i> is present in most examples of this vegetation type. <i>Grindelia lanceolata</i> has become abundant in some examples; this may merit recognition as an association, or it may be a symptom of disturbance. |
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