Oral Paper

         Floristics & Taxonomy

Black Holes, White Gold: A Flora of the Silver Peak Range, NV

Presenting Author
Peri Lee Pipkin
Description
The Silver Peak Range sits in a remote corner of Esmeralda County, Nevada. It is known to have floristic influences from the White Mountains and nearby mountain ranges in Death Valley National Park, and it is a transition zone between the Great Basin and Mojave deserts. The 450 square mile study site contains a 50 square mile wilderness study area, as well as many habitats, including alkali wetlands, canyons, riparian areas, forests, and subalpine peaks that reach 2,856 meters in elevation. These peaks descend into a colorful palate of diverse geology that is home to edaphically restricted and imperiled endemic plants such as Eriogonum tiehmii and Chloropyron tecopense. Plants such as these are facing multiple existential threats including poorly sited geothermal and lithium resource extraction endeavors. Prior to this study, the Silver Peak Range was considered a botanical black hole which is reflective of the lack of botanical documentation in the state. Nevada holds the record for lowest density of herbarium specimens collected per km2 of area in the western US. Currently 1933 collections have been made representing about 66 plant families and around 440 taxa (and growing), with a second season of fieldwork projected to finish in October of 2023. Floristic inventories such as this one are essential because they provide much needed botanical data to inform conservation efforts and to guide land use planning. In addition to rare and endemic species, the area has many culturally important plants in the study area and is abundant with artifacts. This study will provide information about distribution and abundance of rare vascular and nonvascular plant species in the region, will help to describe biogeographical and floristic affinities of species, and will provide data towards critical land management decisions.