Arctostaphylos obispoensis

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Arctostaphylos obispoensis
Arctostaphylos obispoensis - Leaning Pine Arboretum - DSC05643.JPG
Scientific classification
A. obispoensis
Binomial name
Arctostaphylos obispoensis

Arctostaphylos obispoensis is a species of manzanita, known by the common names bishop manzanita and serpentine manzanita, endemic to California.[1]


The plant is endemic to the southern Santa Lucia Mountains, in the Central Coast region of California.[1] It is found primarily in San Luis Obispo County, and extends into southern Monterey County.[1][2]

It grows in chaparral and closed-cone pine forest habitats, usually on serpentine soil. It is found at elevations of 60–950 metres (200–3,120 ft).[3]


It is protected within the Cuesta Ridge Botanical Special Interest Area of the Los Padres National Forest, growing in the endemic Sargent cypress (Cupressus sargentii) forest.[4] The species is listed on the California Native Plant Society Inventory of Rare and Endangered Plants as a rare but not currently endangered species.[5]


Arctostaphylos obispoensis is an upright shrub or multi-trunked tree growing to 1–4 metres (3.3–13.1 ft) in height.[1][3]

The small branches and newer leaves are woolly. The mature leaves are glaucous-gray, hairless, and oblong (northern range) to widely lance-shaped (southern range), and up to 4.5 centimeters long.[3]

The inflorescence is a dense cluster of white urn-shaped and downward facing "manzanita" flowers.

The red fruit is a round waxy drupe, 9–14 millimetres (0.35–0.55 in) in diameter.[3]

See also[edit]


  1. ^ a b c d "Field Guide to Manzanitas," Michael Kauffmann, Tom Parker, & Michael Vasey, Backcountry Press, 2015, ISBN 978-1-941624-02-9, page 98.
  2. ^ Calflora: Distribution map
  3. ^ a b c d Jepson[permanent dead link]
  4. ^ Los Padres National Forest: Cuesta Ridge Botanical Special Interest Area
  5. ^ CNPS, Rare Plant Program. 2016. Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. — Arctostaphylos obispoensis . accessed 1.16.2016.

External links[edit]