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词条 Dudleya abramsii
释义

  1. References

  2. External links

{{Taxobox
| image = Dudleyaabramsiiparva.jpg
| image_caption = ssp. parva
| status = G3
| status_system = TNC
| regnum = Plantae
| unranked_divisio = Angiosperms
| unranked_classis = Eudicots
| unranked_ordo = Core eudicots
| ordo = Saxifragales
| familia = Crassulaceae
| genus = Dudleya
| species = D. abramsii
| binomial = Dudleya abramsii
| binomial_authority = Rose
}}

Dudleya abramsii is a succulent plant known by the common name Abrams' liveforever. The epithet abramsii commemorates LeRoy Abrams.[1] It is native to California and northern Baja California, where it grows in rocky areas in a number of habitat types. It is a fleshy perennial forming a small basal cluster of leaves around a central caudex. The thick, waxy leaves are triangular to oblong and usually pointed, reaching up to 11 centimeters in length, but often remaining much smaller. The entire rosette is generally only a few centimeters wide. The inflorescence is a mostly erect, branching stem lined with pointed bracts and bearing up to 15 flowers. The flower has five small, thick sepals at the base of five pale yellow petals each about a centimeter long.

There are several subspecies:

  • D. a. ssp. abramsii – native to the Peninsular Ranges of California and Baja California
  • D. a. ssp. affinis (San Bernardino Mountains liveforever) – endemic to the San Bernardino Mountains near the edge of the Mojave Desert
  • D. a. ssp. bettinae (San Luis Obispo serpentine dudleya or Betty's liveforever) – endemic to the coastal serpentine of San Luis Obispo County, California
  • D. a. ssp. murina (San Luis Obispo or mouse-leaved dudleya) – endemic to coastal San Luis Obispo County
  • D. a. ssp. parva (Conejo dudleya) – endemic to the Santa Monica Mountains of Ventura County and treated as a federally listed threatened species[2]

References

1. ^{{cite book |last=Eggli |first=U. |last2=Newton |first2=L.E. |title=Etymological Dictionary of Succulent Plant Names |publisher=Springer Berlin Heidelberg |year=2004 |isbn=978-3-540-00489-9 |url=https://books.google.com/books?id=u2n5vusQ1DEC&pg=PA1 |access-date=20 September 2018 |page=1}}
2. ^Center for Plant Conservation: ssp. parva {{webarchive |url=https://web.archive.org/web/20090819050337/http://www.centerforplantconservation.org/ASP/CPC_ViewProfile.asp?CPCNum=1527 |date=August 19, 2009 }}
  • {{cite journal |doi=10.1894/0038-4909(2007)52[630:ITV]2.0.CO;2}}

External links

  • Calflora: Dudleya abramsii (Abrams' dudleya, Abrams' liveforever)
  • Jepson Manual eFlora (TJM2) treatment of Dudleya abramsii{{dead link|date=December 2016 |bot=InternetArchiveBot |fix-attempted=yes }} — & subspecies links.
  • USDA Plants Profile for Dudleya abramsii
  • UC Photos gallery — Dudleya abramsii ssp. affinis
  • UC Photos gallery — Dudleya abramsii ssp. parva
{{Taxonbar|from=Q5312041}}{{Crassulaceae-stub}}

12 : Dudleya|Flora of California|Flora of Baja California|Flora of the California desert regions|Flora of the Sierra Nevada (U.S.)|Natural history of the California chaparral and woodlands|Natural history of the California Coast Ranges|Natural history of the Mojave Desert|Natural history of the Peninsular Ranges|Natural history of the San Francisco Bay Area|Natural history of the Santa Monica Mountains|Natural history of the Transverse Ranges

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