Habitats of North Carolina
Habitat Group:
Habitat Type:
Members of Rock Outcrops, Glades, and Barrens:
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Rock Outcrops, Glades, and Barrens
Habitat Overview Flat,surface exposures primarily of granite and other felsic plutons that accumulate small to extensive deposits of soil, sufficient to support mats of xerophytic mosses, graminoids, and other dwarf plant species. This habitat includes species that are restricted to the Piedmont as well as some that occur at in the Mountains.

Species that occur in the Piedmont that are restricted to circumneutral to basic rock formations are treated in the Basic Barrens and Glades habitat. Species restricted to the Mountains are treated in several other habitats found primarily or exclusively in that region.

Related NHP Natural Communities
Defining Species
Taxa Global RankState RankImperilment ScoreHabitat Risk Index
Cyperus granitophilus - Granite Flatsedge G3G4S23.610.6650
Cyperus squarrosus - Bearded Flatsedge G5S22.840.6650
Diamorpha smallii - Elf Orpine G4S31.750.5000
Mononeuria glabra - Appalachian Sandwort G4S31.750.5000
Mononeuria uniflora - One-flower Sandwort G4S16.330.8300
Phemeranthus teretifolius - Quill Fameflower G4S31.750.5000
Portulaca smallii - Small's Purslane G3S210.080.6650
Sedum pusillum - Granite Stonecrop G3S113.030.8300
Isoetes piedmontana - Piedmont Quillwort G4S23.330.6650
Sum: 44.47
ENE Value of 5.1550 * (1 - # of S5: 0 / # Species 9) = 5.16
Average of 9: 4.94

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 2019-11-17 18:54:45