bio.wikisort.org - Plant
Swallenia is a rare genus of plants in the grass family, found only in Death Valley National Park, California.[2][3]
| Swallenia | |
|---|---|
 | |
Conservation status | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Chloridoideae |
| Tribe: | Cynodonteae |
| Subtribe: | Scleropogoninae |
| Genus: | Swallenia Soderstr. & H.F.Decker |
| Species: | S. alexandrae |
| Binomial name | |
| Swallenia alexandrae (Swallen) Söderstr. & Decker | |
| Synonyms | |
| |
The only known species is Swallenia alexandrae, known by the common names Eureka dunegrass[4] and Eureka Valley dune grass. This genus was named for American botanist Jason Richard Swallen (1903-1991). The species was named for American philanthropist and paleontological collector Annie Montague Alexander.[5]
Description
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.[6][7]
Description
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.[8]
Endangered status
This is a federally listed threatened species of the United States.[9] 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.[1]
References
- The Nature Conservancy
- 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
- "ECOS: Species Profile". ecos.fws.gov. Retrieved 2020-12-18.
- Bonta, Marcia, 1940- (1991). Women in the field : America's pioneering women naturalists (1st ed.). College Station: Texas A & M University Press. pp. 49–60. ISBN 0-89096-467-X. OCLC 22623848.
{{cite book}}: CS1 maint: multiple names: authors list (link) - 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
External links
- Calflora Database: Swallenia alexandrae (Eureka Valley dune grass, Eureka dunegrass)
- Jepson Manual treatment for Swallenia alexandrae
- Grass Manual Profile
- Swallenia alexandrae — UC Photos gallery
На других языках
- [en] Swallenia
[ru] Свалления
Свалления (лат. Swallenia) — монотипный род однодольных растений семейства Злаки (Poaceae), включающий единственный вид — Свалления Александра (Swallenia alexandrae)[2]. Выделен ботаниками Томасом Робертом Сёдерстрёмом и Генри Флемингом Декером в 1963 году[3].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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