2020 David Greenberger 2020 David Greenberger 2020 David Greenberger 2019 Susan McDougall 2023 Julian Geoghegan 2020 David Greenberger 2019 Susan McDougall 2020 Mike Russler 2020 Mike Russler 2019 Susan McDougall 2019 Susan McDougall 2020 Mike Russler 2020 Mike Russler 2020 Mike Russler 2020 Mike Russler 2020 Mike Russler 2011 Chris Winchell
Arctostaphylos morroensis is a shrub that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
Federal status: Threatened.
[Wikipedia] Rarity, Habitat, Threats: This shrub is endemic to San Luis Obispo County, California, where it is known only from the vicinity of Morro Bay. It is limited to a specific type of substrate known as "Baywood fine sands", a type of sandy soil which originated in the Pleistocene as windblown sand dunes.[3] The plant is found on less than 900 acres of coastal sage scrub and chaparral habitat, sometimes forming monotypic stands on hillsides.[3]
Two thirds of its habitat is privately owned, some of it is slated for development, and its habitat requirements are narrow; these and other problems led to the plant's being listed as a threatened species in 1994.[3] Some of the plants are protected within MontaƱa de Oro State Park (link added by Mary Ann Machi)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 07/12/2025).