Conserving the Nature of America
Service Completes Initial Reviews on ESA Petitions for Two Species

July 21, 2020


Contacts: Brian Hires,, 703-358-2191

The U.S. Fish and Wildlife Service has completed initial reviews on petitions to list two plant species under the Endangered Species Act (ESA), the Las Vegas bearpoppy and Tiehm’s buckwheat. Each listing petition presented substantial information that the petitioned action may be warranted and consequently, the Service will initiate full status reviews on these species.

The Las Vegas bearpoppy is a desert plant found only in Clark County in Nevada and Mojave County in Arizona. Primary threats to the bearpoppy cited by the petitioner include urbanization, mining, grazing and recreation.

The only known population of Tiehm’s buckwheat was discovered in 1985 by two prominent Nevada botanists on public land managed by the Bureau of Land Management in Esmerelda County, Nevada. The plant is restricted to 21 acres of land in remote Nevada, supported by unique clay desert soils. Multiple survey efforts failed to locate additional populations of the species.

The ESA allows citizens to petition the Service to add species to the federal List of Endangered and Threatened Wildlife and Plants, remove species from the list, and to reclassify species already on the list.

The Federal Register docket numbers and links for the substantial petition findings in this batch are:




Docket Number

Docket link

Las Vegas bearpoppy




Tiehm’s buckwheat




The notice for the above findings will be available in the Federal Register Reading Room on July 21, 2020 at on the 2020 Notices link under Endangered and Threatened Wildlife and Plants.


For more information on the ESA listing process, including 90-day findings and status reviews, please go to

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