| SX |
- Taxon is believed to be extirpated from the province.
- Not located despite intensive searches of historical sites and other appropriate habitat.
- Virtually no likelihood that it will be rediscovered.
|
| SH |
- Known from only historical records but still some hope of rediscovery.
- Evidence that the taxon may no longer be present but not enough to state this with certainty.
|
| S1 |
- Known from five or fewer occurrences or especially vulnerable to extirpation because of other factor(s).
|
| S2 |
- Known from twenty or fewer occurrences or vulnerable to extirpation because of other factors.
|
| S3 |
- Known from 100 or fewer occurrences, or somewhat vulnerable due to other factors, such as restricted range, relatively small population sizes, or other factors.
|
| S4 |
- Apparently secure.
- Taxon is uncommon but not rare.
- Potentially some cause for long term concern due to declines or other factors.
|
| S5 |
- Secure - taxon is common, widespread, and abundant.
|
