Name:
A.1905
Reference:
EcoArt 2002
Description:
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.
Accession Code:
VB.CC.1606.A1905
Plot-observations of this Community Concept:
0
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