Endangered and Threatened Wildlife and Plants; Determination of Endangered or Threatened Status for Four Plants From Southwestern California and Baja California, Mexico

The Fish and Wildlife Service (Service) determines endangered status for one plant Monardella linoides ssp. viminea (willowy monardella) throughout its historic range in southwestern California and northwestern Baja California, Mexico, and threatened status for three plants: Acanthomintha ilicifolia (San Diego thornmint), Dudleya stolonifera (Laguna Beach dudleya), and Hemizonia conjugens (Otay tarplant) throughout their historic ranges in southwestern California and northwestern Baja California, Mexico, under the Endangered Species Act of 1973, as amended (Act). These four species occur in coastal sage scrub, chaparral, and grassland habitats and are threatened by a variety of factors including urban and agricultural development, competition from nonnative plant species, off-road vehicle use, mining, grazing, and trampling by hikers. This rule implements the Federal protection and recovery provisions afforded by the Act for these four plant species.