Survey of State Criteria Used to Determine the Status of Plant Taxa
Kyle Dayton
Rose Family Books, 44244 N. 14th St, Phoenix, AZ 85087; rosefamilybooks@email.com,
www.rosaceae.com
Abstract
This paper is an organized summary discussion of the basic considerations
(criteria) used by state-level organizations in determining the status of
native taxa on an individual basis (such as endangered, threatened, extinct,
or other lesser rankings). First, I discuss general criteria used when classifying
plant species and then I highlight seven categories used for ranking plant
status in the United States.