Texas Conservation Action Plan: Species of Greatest Conservation Need

The lists below were developed using a conservation status system established by NatureServe. Each species and plant community possesses a global (range-wide) and state rank based on their respective rarity. The conservation status of a species is designated by a number from one to five, preceded by a letter reflecting the appropriate geographic scale (G=Global, S=State). Numbers have the following meaning: 1) Critically imperiled, 2) Imperiled, 3) Vulnerable, 4) Apparently secure, and 5) Secure.