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NATURAL HERITAGE

THE NATURAL COMMUNITIES OF VIRGINIA
CLASSIFICATION OF ECOLOGICAL COMMUNITY GROUPS


Second Approximation (Version 2.6)
Information current as of July, 2013




LOW-ELEVATION ROCK OUTCROPS AND BARRENS

Ecological community groups with distributions centered below 1,070 m (3,500 ft) elevation and representing edaphically (or in one case, fire-) controlled woodland, scrub, herbaceous, and moss/lichen vegetation.


Low-Elevation Acidic Outcrop Barrens

Low-Elevation Basic Outcrop Barrens

Limestone and Dolomite Barrens

Mountain / Piedmont Calcareous Cliffs

Mountain / Piedmont Acidic Cliffs

Central Appalachian Shale Barrens

Granitic Flatrocks

Piedmont Prairies

Ultramafic Woodlands and Barrens

Riverside Outcrop Barrens

Lichen / Bryophyte Nonvascular Boulderfields and Outcrops

photo of Potomac Gorge rock outcrops
Gary P. Fleming