USFWS proposes to list the swale paintbrush (Castilleja ornata), a flowering plant species from New Mexico within the United States and the states of Chihuahua and Durango in Mexico, as an endangered species under the ESA. This determination also serves as their 12-month finding on a petition to list the swale paintbrush. After a review of the best available scientific and commercial information, they find that listing the species is warranted. If finalized this rule as proposed would add this species to the List of Endangered and Threatened Plants and extend the Act's protections to the species. They find that designating critical habitat for the swale paintbrush is not prudent at this time. Comments will be accepted if received or postmarked on or before 7 August 2023. POC is Shawn Sartorius, Field Supervisor, USFWS, New Mexico Ecological Services Field Office, 2105 Osuna Road NE, Albuquerque, NM 87113; tele 505–346–2525. (Federal Register 8 June 2023 [Proposed Rule] Pages 37490-37504)