California Scrub Oak / Center For Plant Conservation
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Plant Profile

California Scrub Oak (Quercus dumosa)

at Los Penasquitos Canyon, San Diego County

Photo Credit: Stacy Anderson
  • Global Rank: G3 - Vulnerable
  • Legal Status: N/A
  • Family: Fagaceae
  • State: CA
  • Nature Serve ID: 154209
  • Lifeform: Tree, Shrub
  • Categories of Interest: Oaks
  • Date Inducted in National Collection: 02/18/2022

Where is California Scrub Oak (Quercus dumosa) located in the wild?

States & Provinces:

California Scrub Oak can be found in California

Which CPC Partners conserve California Scrub Oak (Quercus dumosa)?

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

Katie Heineman
  • 02/18/2022
  • Cryo

Dr. Joe Ree, a post doc at the San Diego Zoo Wildlife Alliance, is researching the protocols and cryoprotectants necessary to store Quercus dumosa tissue in cryogenic storage.

Katie Heineman
  • 02/18/2022
  • Tissue Culture

San Diego Zoo Wildlife Alliance postdoctoral fellow Dr. Joe Ree is actively maintaining multiple genotypes of Quercus dumosa on tissue culture media. 

  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, San Diego Zoo Global holds 1 accessions of Quercus dumosa in orthodox seed collection. We are uncertain as to how many total seeds are in this collection.

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, San Diego Zoo Global has collected 1 seed accessions of Quercus dumosa from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 25 maternal plants

Katie Heineman 04/19/2019

For California Plant Rescue, we are conducting a gap analysis of the conservation collections of California native plants by compiling the "living collections" and seed accessions of six botanic gardens. There are a few instances where living collections clearly represent intentional, population level conservation collections at a single institution. However, there are also a several instance of multiple institution having different, wild provenanced accessions of the same species (Quercus dumosa, Abies bracteata, several species of Arctostaphylos). Is it useful to designate these meta-collections as a conservation collection for gap analysis purposes? Or is it not a true conservation collection if the individuals are not from the same population?

Taxon Quercus dumosa
Authority Nutt.
Family Fagaceae
CPC Number 44534
ITIS 19323
Duration Perennial
Common Names Coastal sage scrub oak | Nuttall's scrub oak | California scrub oak
Associated Scientific Names Quercus dumosa | Quercus dumosa var. dumosa | Quercus dumosa var. elegantula | Quercus × macdonaldii var. elegantula | Quercus dumosa var. populifolia | Quercus dumosa var. linearis
State Rank
State State Rank
California S3
Ecological Relationships

Common Name Name in Text Association Type Source InteractionID
Mining bees Andrena atypica Not Specified Link
Sweat bees Lasioglossum titusi Not Specified Link

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