Habitats of North Carolina
Habitat Group:
Habitat Type:
Members of Rock Outcrops, Glades, and Barrens:
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Rock Outcrops, Glades, and Barrens
High Elevation Rock Outcrops
No image for this habitat.
Habitat Overview This habitat consists of exposed rock outcrops at elevations above 4,000'. The determining species are all herbaceous plants found only in this habitat. Currently, no herbivorous species are known to specialize on these plants.
Related NHP Natural Communities
Determining Species
Taxa Global RankState RankProbability of Extirpation (PE)
Geum radiatum - Spreading Avens G2S20.0460
Houstonia montana - Roan Mountain Bluet G2S20.0460
Rhodiola rosea - Roseroot G5SH0.00
Huperzia appressa - Appalachian Firmoss G5S30.0058
Expected Number of Extirpations with a PE value (Sum of PE) = 0.0978
N = Number of Extant Species with a PE value = 3
Average PE = ENE/N = 0.0326
Number of S5 species = 0
Proportion of Secure Species = Number of S5 Species/N = 0.0000
Habitat Risk Index = ENE x (1 – PSS) = 0.0978

Candidates for Inclusion
Habitat Sub-sets
Distribution Map
Survey Coverage Map
Survey Coverage
Survey Priorities
Average Imperilment of Habitat Members
Habitat Conservation Status
High Quality Habitat Occurrence Table
High Quality Habitat Occurrences
Protected Habitat Occurrences
Threats and Trends
Status Summary
Stewardship Recommendations
Updated on 2021-03-27 22:40:59