Eureka Valley dune grass
Critically Imperiled (NatureServe)
Soderstr. & H.F.Decker
(Swallen) Söderstr. & Decker
The only known species is Swallenia alexandrae, known by the common names Eureka dunegrass and Eureka Valley dune grass. This genus was named for American botanist Jason Richard Swallen (1903-1991).
This is a rare plant endemic to Inyo County, California, where it is found on a single isolated dune system, the Eureka Valley Sand Dunes in the Eureka Valley of the Mojave Desert, within Death Valley National Park.
Swallenia alexandrae is a coarse, tufted perennial grass which grows in sand from thick rhizomes. Its stiffly erect clums, sharp-leafed grass, and erect pale-colored panicle inflorescences are diagnostic.
This is a federally listed endangered species of the United States, and an IUCN listed Critically endangered species. The main threat to the species survival has been off-roading, which is no longer permitted in its habitat. Trespassing off-roaders and campers are still a threat to the five remaining occurrences.
- Soderstrom, Thomas Robert & Decker, Henry Fleming. 1963. Madroño 17(3): 88
- Swallen, Jason Richard. 1950. Journal of the Washington Academy of Sciences 40(1): 19-21 descriptions in parallel English + Latin, discussion in English, photo of herbarium specimen
- "Swallenia alexandrae". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 4 December 2015.
- Biota of North America Program 2013 county distribution map
- University of British Columbia Botanical Garden and Centre for Plant Research, Botany Photo of the Day, Swallenia alexandrae, By Daniel Mosquin on December 7, 2007
- Jepson Manual Treatment
- Plant Conservation Report
- The Nature Conservancy
- Calflora Database: Swallenia alexandrae (Eureka Valley dune grass, Eureka dunegrass)
- Jepson Manual treatment for Swallenia alexandrae
- Grass Manual Profile
- Swallenia alexandrae — UC Photos gallery
|This Chloridoideae article is a stub. You can help Wikipedia by expanding it.|