Arctostaphylos hookeri
| Arctostaphylos hookeri | |
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| ssp. franciscana | |
| Scientific classification | |
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| (unranked): | |
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| Species: | A. hookeri
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| Binomial name | |
| Arctostaphylos hookeri | |
Arctostaphylos hookeri is a species of manzanita known by the common name Hooker's manzanita.
Description
Arctostaphylos hookeri is a low shrub which is variable in appearance and has several subspecies. These are generally mat-forming plants or low bushes with small green leaves, dense inflorescences of white to pink flowers, and shiny egg-shaped or round red drupes.
Distribution
The Arctostaphylos hookeri shrub is endemic to California where its native range extends from the coastal San Francisco Bay Area to the Central Coast.
Subspecies
- There are several subspecies including:
- A. h. franciscana - Franciscan manzanita - native to the city of San Francisco and thought to be extinct in the wild until one specimen was discovered in 2009.[1][2] Less than a month later, Caltrans transplanted this specimen to make way for the Doyle Drive Replacement Project.[3] As of September 4, 2012, the U.S. Fish and Wildlife Service plans to designate Franciscan manzanita as an endangered species.[4]
- A. h. hearstiorum - Hearst's manzanita - native to San Luis Obispo County
- A. h. hookeri - grows in the Santa Cruz Mountains and nearby
- A. h. montana - Mt. Tamalpais manzanita - native to Mount Tamalpais
- A. h. ravenii - Presidio manzanita - one single plant and a few clones exist at the Presidio of San Francisco. Federally listed as an endangered species of the United States.
See also
References
- ^ Ishimaru, H. Protected plant may delay Doyle Drive project. abcnews.com November 18, 2009.
- ^ Fimrite, P. Manzanita bush's discovery excites scientists. San Francisco Chronicle December 26, 2009.
- ^ Caltrans. Doyle Drive Transplanting Manzanita Bush. January 23, 2010.
- ^ La Ganga, Maria. "Franciscan manzanita added to U.S. endangered list". The Los Angeles Times. Retrieved 5 September 2012.
External links
Wikimedia Commons has media related to Arctostaphylos hookeri.
- Jepson Manual Treatment - Arctostaphylos hookeri
- USDA Plants Profile; Arctostaphylos hookeri
- Conservation: Arctostaphylos hookeri ssp. franciscana
- Conservation: Arctostaphylos hookeri ssp. ravenii[permanent dead link]
- Arctostaphylos hookeri - Photo gallery
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