San Diego Management & Monitoring Program


Rare Plants
San Diego Thornmint Restoration

in progress

Project description

The goal of the project is to improve and expand areas occupied by the San Diego thornmint (MSP Category SO [Significant occurrence(s) at risk of loss from MSPA]) within Mission Trails Regional Park (MTRP) Fortuna through restoration and enhancement of degraded habitat. This program addresses the immediate needs of thornmint within the MTRP by building on the on-going City weed treatment effort (based on SANDAG-funded CBI protocols to address Brachypodium distachyon) to address loss and degradation of existing thornmint habitat due to an increase of invasive plants and drought. Activities included in this program consist of herbicide treatment, thornmint and other native seed collection, seed bulking and redistribution, vegetation monitoring, photo monitoring, and thornmint monitoring. The methodologies used in conjunction with this proposal are similar to those used to restore approximately .25 acres of Pogogyne nudiuscula (Otay Mesa Mint) vernal pool habitat located in Otay Mesa. This project is consistent with the management objectives and actions prescribed in CBl's / SDMMP's Adaptive Management Framework for the Endangered San Diego Thornmint, the MTRP Natural Resources Management Plan, and the City of San Diego MHPA - Eastern Area MSCP Subarea Plan. Herbicide weed treatment within the thornmint population at MTRP Fortuna last occurred in 2014 and 2015.


Project focus

Project type: General Management

Target species: San Diego thorn-mint


Implementing entities

Main implementing entity: Mission Trails Regional Park Foundation, Inc.

Point of contact: Nancy Petitti

Project Page manager: Sarah McCutcheon

SDMMP lead: Sarah McCutcheon

Study lead: Nancy Petitti


Project Funding

San Diego Association of Governments

Strategic elements

MSP Objectives and actions:ACAILI-3