Name:
Laurentian-Acadian Acidic Rocky Scrub & Grassland Macrogroup
Reference:
NatureServe Biotics 2019
Description:
This macrogroup comprises infertile scrub vegetation characterized by variable cover of shrubs, herbs, lichens, and occasional scattered trees, occurring on sandplains and rock outcrops in cool temperate regions of northeastern and north-central North America. Ericaceous shrubs or heath (<i>Gaylussacia baccata, Kalmia angustifolia, Vaccinium angustifolium, Vaccinium myrtilloides, Vaccinium pallidum</i>), scrub oaks (<i>Quercus ilicifolia</i> or <i>Quercus prinoides</i>), stunted oaks (<i>Quercus rubra</i>), and dwarf-shrubs (<i>Arctostaphylos uva-ursi, Corema conradii, Gaultheria procumbens, Leiophyllum buxifolium, Pyxidanthera barbulata</i>) characterize this vegetation throughout its range. Graminoids are mostly dominant in the herb layer and include <i>Carex lucorum, Carex pensylvanica, Danthonia spicata, Deschampsia flexuosa, Schizachyrium scoparium</i>, and/or the non-native <i>Poa compressa</i>. <i>Pteridium aquilinum</i> is a common fern. Nonvascular species are often important and may include mosses (e.g., <i>Dicranum</i> spp., <i>Polytrichum</i> spp.) and/or fruticose lichens (e.g., <i>Cladonia</i> spp.). Climate is north-temperate, continental to coastal. This vegetation develops in settings within this primarily forested region where exposed, dry, acidic, nutrient-poor conditions do not sustain forest vegetation.
Accession Code:
urn:lsid:vegbank.org:commConcept:40805-{A94F5FCC-4840-4ED7-9742-ED8303E0363D}
Plot-observations of this Community Concept:
0
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