Population Enhancement of Tiburon Jewelflower at Old St. Hilary’s Open Space Preserve
Summary
SCH Number
2025061193
Public Agency
California Department of Fish and Wildlife, Habitat Conservation Planning
(CDFW)
Document Title
Population Enhancement of Tiburon Jewelflower at Old St. Hilary’s Open Space Preserve
Document Type
NOE - Notice of Exemption
Received
Posted
6/25/2025
Document Description
The California Department of Fish and Wildlife is issuing a California Endangered Species Act permit pursuant to Fish and Game Code section 2081(a) to MCOSD (Permit No. 2081(a)-25-002-RP) for a project to expand the population of Tiburon jewelflower within its natural range through seed collection, amplification, and outplanting. Tiburon jewelflower currently has a restricted range limited to two occurrences on the Tiburon peninsula. CNDDB EO 1 is located within the Preserve. MCOSD recently acquired 109 acres of serpentine grassland habitat directly adjacent to the Preserve that appears suitable for Tiburon jewelflower, but there are no known historical populations within the new site. The Project will collect Tiburon jewelflower seed from CNDDB EO 1, amplify the seed under nursery conditions, and outplant the amplified seed within the newly preserved property to expand the boundaries of CNDDB EO 1. No more than five percent of available seed will be collected from CNDDB EO 1 in July of 2025 and 2026. Collected seed will be temporarily stored before being amplified at the MCOSD nursery in January 2026 and 2027. Once fruits mature, seed will be collected and stored for outplanting in November or December of 2026 and 2027. Suitable outplanting sites will be selected to best match the conditions of reference sites within the existing population. 1 m x 2 m plots will be marked with stakes and seeded with a target of 500 seeds per plot. The number of plots established will depend on the amount of seed available for outplanting each year. Seeded plots will be monitored annually each spring for the term of the permit to assess establishment and level of recruitment.
Contact Information
Name
Joanne Heraty
Agency Name
California Department of Fish and Wildlife, Habitat Conservation Planning Branch
Job Title
Senior Environmental Scientist- Specialist
Contact Types
Lead/Public Agency
Address
Phone
Name
Julian Geoghegan
Agency Name
Marin County Parks & Open Space District
Job Title
Vegetation Specialist
Contact Types
Project Applicant / Parties Undertaking Project
Phone
Location
Counties
Marin
Regions
Countywide, Northern California, San Francisco Bay Area
Other Location Info
The Project will take place in Marin County at Old St. Hilary’s Open Space Preserve (Preserve), which is a property managed by Marin County Parks as part of the Marin County Open Space District (MCOSD) and recognized as Tiburon jewelflower (Streptanthus glandulosus ssp. niger) California Natural Diversity Database (CNDDB) Element Occurrence (EO) 1 (37.88208, -122.45572). Propagation activities will take place at the MCOSD nursery facilities in Lagoon Park, San Rafael (38.00245, -122.52891).
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
California Code of Regulations, Title 14, Section 15306, Class 6, and 15307, Class 7
Reasons for Exemption
The Project consists of basic data collection, research, experimental management, and resource evaluation activities and will facilitate the recovery of California endangered Tiburon jewelflower within its historic range. The permit issued by CDFW for the Project includes measures to ensure that existing populations of Tiburon jewelflower are adequately protected.
County Clerk
Marin
Attachments
Notice of Exemption
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