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| Mount Diablo Manzanita | ||||||||||||||
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| Arctostaphylos auriculata Eastw. |
Arctostaphylos auriculata (Mount Diablo Manzanita) is an endangered species of Arctostaphylos, limited in geography to the area surrounding Mount Diablo, in Contra Costa County, California.
It is a woody shrub 1-4.5 m high with serpentine, glandless stems covered in white hair. The short [1.5-4.5cm], silvery leaves overlap and have deeply lobed bases. It flowers densely in white February through May. The fruit is also hairy and small (5-10 mm).
The Mount Diablo Manzanita has no basal burl for regrowth and must propagate by seed.
Growing in sandstone chaparral around 150-650 meter elevation, the thick undergrowth of Mount Diablo Manzanita is often accompanied by poison oak or California wild grapes.
References
- Jepson Flora Project: Arctostaphylos andersonii (W. L. Jepson. 1951. A Manual of the Flowering Plants of California, p. 750).
- Coffey, Geoffrey. "Sympathy for the devil -- tricks and treats on Mount Diablo." San Francisco Chronicle 25 Oct. 2003 : E-7.
- USDA Plants Profile
- Photo gallery
