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Wyoming Natural Diversity Database

Petitioned Plants Data Compilation

Of five plant species that were petitioned for listing in 2007 under the Endangered Species Act, only one has become a Candidate for listing: Small rockcress (Boechera pusilla). The other four species were denied listing: Precocious milkvetch (Astragalus proimanthus), Yellowstone sand verbena (Abronia ammophila), Gibbens' beardtongue (Penstemon gibbensii), and Ross bentgrass (Agrostis rossiae). The U.S. Fish and Wildlife posted the decisions and supporting documentation in the Federal Register on 9 June 2011. Click on the links in the left menu information on these five species.

In addition, Whitebark pine (Pinus albicaulis) was petitioned for listing in 2008 under the Endangered Species Act. The U.S. Fish and Wildlife Service posted the decision and supporting documentation in the Federal Register on 19 July 2011. Information on this species’ status in Wyoming will be added to this site at a later date.

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