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Arctostaphylos ohloneana

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Arctostaphylos ohloneana

Critically Imperiled  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Arctostaphylos
Species:
A. ohloneana
Binomial name
Arctostaphylos ohloneana
M.C.Vasey & V.T.Parker

Arctostaphylos ohloneana is a rare species of manzanita known by the common name Ohlone manzanita in the Santa Cruz Mountains in California. It is endemic to northwest Santa Cruz County, where it is known only from four populations on Ben Lomond Mountain, just south of Big Basin Redwoods State Park.

It was discovered in the 1980s among other manzanita species on the mountain and it was described to science in 2008.[1] There are an estimated 100 individuals in existence.[2]

Distribution

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Arctostaphylos ohloneana occurs in maritime chaparral and oak and pine forest habitat on whitish soils of siliceous shale origin.[1] The plants all occur on land owned by Lockheed Martin.[2]

Description

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Arctostaphylos ohloneana is an erect, bushy shrub reaching one or two meters in height. The branches are covered in reddish-brown bark and the newer twigs have fuzzy hairs. The light green leaves have oval blades up to 3 centimeters long by 1.5 wide. The inflorescence is a panicle of white or pinkish conical or urn-shaped flowers. The fruit is a spherical reddish-brown drupe 5 to 8 millimeters wide.

References

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  1. ^ a b M. C. Vasey and V. T. Parker. (2008). A newly described species of Arctostaphylos (Ericaceae) from the Central California Coast. Madroño 55:3 240-45.
  2. ^ a b The Nature Conservancy
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