Federally listed as an endangered species of the United States.
It was federally listed as an endangered species of the United States in 2010.
It is federally listed as an endangered species of the United States.
It has been federally listed as an endangered species of the United States since 1978.
This has been a federally listed endangered species of the United States since 1979.
The plant was listed as a threatened species of the United States in 1993.
The plant has been federally listed as a threatened species of the United States since 1981.
The plant became a federally listed threatened species of the United States in 1992.
In 1992 it was federally listed as an endangered species of the United States.
Both are federally listed endangered species of the United States.