Source: California Invasive Plant Council

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Invasive Plant Inventory - 2017 Update

Cal-IPC is undertaking a periodic update of its California Invasive Plant Inventory. All stakeholders are encouraged to comment on the process, and two public comment periods are planned.

The update comprises (1) possible addition of new species based on assessment of impact, invasiveness and distribution using the protocol we established in 2003 and described on this website, and (2) addition of new species as "high-risk potential invasives" based on an assessment protocol developed by UC Davis and the University of Washington.

We anticipate posting proposed additions on Feb. 1, 2017. A 45-day public comment period will follow. The technical advisory committee will then review comments, and if substantial changes are made, re-release any changed assessments for an additional 30-day public review period. The Inventory will then be finalized and posted online, and will be accompanied by a list of comments received and the technical advisory committee's responses.

Please submit any comment on the Inventory update process to project lead Ramona Robison.

Project Team

Project Leads:

  • Dr. Ramona Robison, Science Program Manager, Cal-IPC
  • Dr. Elizabeth Brusati, Sr. Environmental Scientist, California Dept. of Fish & Wildlife (formerly Senior Scientist, Cal-IPC)
  • Doug Johnson, Executive Director, Cal-IPC

Technical Advisory Committee:

  • Giselle Block, Biologist, US¬†Fish &¬†Wildlife Service
  • Dr. Jutta Burger, Science & Stewardship Director, Irvine Ranch Conservancy
  • Barbara Castro, Environmental Scientist, California Department of Water Resources
  • Gina Darin, Senior Environmental Scientist, California Department of Water Resources
  • Dr. Holly Forbes, Curator, University of California Botanical Garden at Berkeley
  • Dr. Naomi Fraga, Director of Conservation Programs, Rancho Santa Ana Botanic Garden
  • Tim Hyland, Resource Ecologist, California State Parks, Santa Cruz District
  • Diane Ikeda, Regional Botanist, US Forest Service
  • Dr. Irina Irvine, Restoration Ecologist, Santa Monica Mountains Natural Recreation Area
  • Dr. Denise Knapp, Director of Conservation and Research, Santa Barbara Botanic Garden
  • John Knapp, California Islands Ecologist, The Nature Conservancy
  • Dr. Chris McDonald, Natural Resources Advisor, University of California Cooperative Extension
  • Steve Schoenig, Branch Chief, California Department of Fish and Wildlife, Biogeographic Data Branch (retired)
  • Dr. Lynn Sweet, Plant Ecologist, U.C. Riverside Center for Conservation Biology
  • Ron Vanderhoff, General Manager and Vice President, Roger's Gardens
  • Dr. Kristina Wolf, U.C. Davis, Agricultural Sustainability Institute
  • Eric Wrubel, Botanist, National Park Service, San Francisco Bay Area Network

Additional Technical Consultants:

  • Dr. Joseph DiTomaso, Department Chair, U.C. Davis, Department of Plant Sciences
  • Dr. Dean Kelch, Primary Botanist, California Department of Food and Agriculture
  • Christiana Conser, PhD student, U.C. Davis, Department of Plant Sciences