| * Status: |
| NC: | E = Endangered; legal status as designated by the NC Wildlife Resources Commission |
| T = Threatened; legal status as designated by the NC Wildlife Resources Commission |
| SC = Special Concern; legal status as designated by the NC Wildlife Resources Commission |
| SR = Significantly Rare; non-legal status as given by the NC Natural Heritage Program |
| W = Watch List; non-legal status as given by the NC Natural Heritage Program |
| US: | E = Endangered; legal status as designated by the US Fish & Wildlife Service |
| T = Threatened; legal status as designated by the US Fish & Wildlife Service |
| PE = Proposed Endangered; designation by the US Fish & Wildlife Service |
| FSC = Federal Species of Concern; designation by the US Fish & Wildlife Service |
|
| Rank: | NatureServe gives each plant and animal species a global rank of rarity, and each state Natural Heritage Program gives each species occurring within its borders a state rank of rarity. Thus, each species has a global and state rank. For each species, the S# varies from state to state, depending on rarity (number of records, threats, etc.). |
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| State: |
| Rank | Number of Extant Populations |
| S1 | 1-5 | Critically imperiled in North Carolina because of extreme rarity or because of some factor(s) making it especially vulnerable to extirpation from North Carolina. |
| S2 | 6-20 | Imperiled in North Carolina because of rarity or because of some other factor(s) making it very vulnerable to extirpation from North Carolina. |
| S3 | 21-100 | Rare or uncommon in North Carolina. |
| S4 | 101-1000 | Apparently secure in North Carolina, though it may be quite rare in parts of its range, especially at the periphery. |
| S5 | 1001+ | Demonstrably secure in North Carolina, though it may be quite rare in parts of its range, especially at the periphery. |
| S#M | 1-1001+ | Migratory, or with extensive movements (used here only for aquatic species – whales, dolphins, porpoises, seals, and manatee). |
| SU | 1+ | Status and abundance uncertain; need more information.
|
| SA | 1? | Accidental or casual; one to several records for North Carolina, but the state is outside the normal range of the species. |
| SE | 1-1001+ | Exotic; not native to North Carolina.
|
| SH | 0 | Of historical occurrence, perhaps not having been verified in the past 20 years, and suspected to be still extant. |
| SX | 0 | Presumed extirpated -- believed to be extirpated in North Carolina. |