California Invasive Plant Council

California Invasive Plant Council Cal-IPC's mission is to protect California's lands and waters from ecologically-damaging invasive plants through science, education, and policy.

Over the past 30 years, Cal-IPC has supported the needs of natural resource managers and researchers by addressing policy, science, and education related to invasive plants. We train professional and volunteer land stewards, sharing education through:
• The annual Cal-IPC Symposium .
• Training courses
• Publications - Don’t Plant a Pest brochures, a quarterly newsletter, books,

and the California Invasive Plant Inventory. The Inventory is recognized the definitive list of invasive plants throughout the state. We design science-based tools:
• Risk mapping – collects critical data on the current distribution of each invasive plant species in the state, and predicts vulnerability to future spread using climatic modeling tools.
• Research - distribution and impact reports, detailed maps of selected invasive plants
• California Horticultural Invasives Prevention (Cal-HIP) partnership – We provide the scientific foundation for this state and national partnership with the horticultural community. We advocate for sound public policy and funding:
• Invasive W**ds Awareness Day at the Capitol – An annual advocacy day in Sacramento where teams of natural resource managers visit the offices of all 120 state legislators.
• California Invasive Species Advisory Committee – Created by the Invasive Species Council of California to provide advice and develop recommendations.
• National advocacy coordination – Cal-IPC, on behalf of the National Association of Exotic Pest Plant Councils, led a national campaign encouraging natural resource managers to comment on USDA’s proposed improvements to plant import regulations.

*Social Media Guidelines*
Cal-IPC is dedicated to protecting California’s environment and economy from invasive plants. Our projects are informed by the best scientific knowledge available, from experts across the state. We encourage discussion, information-sharing, and collaboration to protect our state’s wildlands. In that spirit, we strive to keep our social media platforms free from unprofessional behavior or misinformation. Please note that the following will not be accepted: abusive language, harmful remarks, bullying, or willfully disseminating “bad science” (defined as well-intentioned but incorrect, obsolete, incomplete, or over-simplified expositions of scientific ideas). In the interest of healthy discussion, we will try to address any inaccuracies or misunderstanding. However, comments that are deemed inappropriate will be deleted. Repeat offenders may be blocked, at the discretion of the Cal-IPC social media team. Thank you for joining the Cal-IPC community. Let’s work together to protect California!

Did you know that CA’s Natural Resources Secretary, Wade Crowfoot, has been hosting a Secretary Speaker Series? These mo...
09/01/2026

Did you know that CA’s Natural Resources Secretary, Wade Crowfoot, has been hosting a Secretary Speaker Series? These monthly discussions are with leaders and big thinkers across CA to discuss emerging natural resource issues.

They recently discussed invasive species, which included our very own Tanya Meyer, Program Manager at Yolo County RCD and Cal-IPC Board member. Check out the conversation here: https://www.youtube.com/live/3ZFiUbYs4Rc

Also you can watch previous speaker series events and stay tuned on upcoming discussions. https://resources.ca.gov/About-Us/Secretary-Speaker-Series https://bit.ly/45Z6tTq

Last week we joined the California Invasive Species Advisory Committee (CISAC) for a tour of the Delta, where we got an ...
08/20/2026

Last week we joined the California Invasive Species Advisory Committee (CISAC) for a tour of the Delta, where we got an up-close look at projects tackling invasive species. Speakers shared their experiences managing invasive species across the Delta, giving us a better understanding of the unique challenges faced in the region. We also got to see drones, detector dogs, airboats, and more in action protecting the Delta from invasive species. Don't miss the CISAC Invasive Species Summit on Oct 1 and 2!

The last of UCANR’s Invasive W**d Species Miniseries is tomorrow! Join at 3pm for Dr. Chris McDonald’s talk on “Invasive...
08/18/2026

The last of UCANR’s Invasive W**d Species Miniseries is tomorrow! Join at 3pm for Dr. Chris McDonald’s talk on “Invasive W**d Management in SoCal-Invasive Annual Grasses, Mustards, Perennial Grasses, and Stinknet.”

DPR credits available!

Register at: https://ucanr.zoom.us/webinar/register/WN_NzCrocQ1SzWXcrN87g2GiA #/registration

Meet Cal-IPC's new Development Manager, Margaret Daly. She holds a B.A. in Anthropology and Environmental Studies, and w...
08/14/2026

Meet Cal-IPC's new Development Manager, Margaret Daly. She holds a B.A. in Anthropology and Environmental Studies, and while she grew up in the East Bay Area, she has traveled worldwide, living and working in places ranging from Los Angeles to Salzburg, Austria. During her travels, two things have remained constant: supporting environmental causes and singing opera. Before Cal-IPC Margaret served as a CA Climate Action Corps Fellow and worked in development for ClientEarth. In addition to singing opera, her other interests include reading, hiking, and studying foreign languages.

Welcome Margaret and we’re excited to have you as part of the team!

Special reminder to submit your photos! Not only do we love seeing them, but they help us tell the story of w**d work in...
08/11/2026

Special reminder to submit your photos! Not only do we love seeing them, but they help us tell the story of w**d work in California. Your photos may be used (with credit to you) in Cal-IPC outreach materials. Winners also receive Cal-IPC swag!

Now - Sept. 15: Submit photos online
Sept. 16 - Oct. 20: Vote for favorites online
Oct 22: Winners announced at the Symposium

Submit your photos here: https://www.cal-ipc.org/resources/symposium/photocontest/

Join UCANR again this Wednesday, 8/12, at 3pm for Dr. Whitney Brim-Deforest’s talk on “Management of Ludwigia decurrens ...
08/10/2026

Join UCANR again this Wednesday, 8/12, at 3pm for Dr. Whitney Brim-Deforest’s talk on “Management of Ludwigia decurrens in California.” This is the second of three talks in their Invasive W**d Species Miniseries.

DPR credits available!

Register here: https://ucanr.zoom.us/webinar/register/WN_CnREjljYS6yg9GdiYmx1DQ #/registration

A big congratulations to the all of those who are receiving an Anderson Scholarship to attend the 2026 Cal-IPC Symposium...
08/07/2026

A big congratulations to the all of those who are receiving an Anderson Scholarship to attend the 2026 Cal-IPC Symposium this year. Seventeen individuals will be receiving free registration plus a check to help cover the time to attend. We’re so excited you’ll be joining us and we look forward to seeing you there!

Our 2026 t-shirts are available now! With a fun original design and art by Annaliese Miller (amdesignworks.net), this sh...
08/06/2026

Our 2026 t-shirts are available now! With a fun original design and art by Annaliese Miller (amdesignworks.net), this shirt emphasizes the ways that our local work connects to the global challenge of invasive species. Get your shirt early by ordering before 8/19! Lots of colors and styles available.

Order here: https://www.bonfire.com/think-globally-w**d-locally/

New species have recently been added to Cal-IPC’s Inventory! Our Inventory is the go-to reference for invasive and high-...
08/04/2026

New species have recently been added to Cal-IPC’s Inventory! Our Inventory is the go-to reference for invasive and high-risk exotic plants in natural areas and is informed by expert assessments. Plant species that aren't yet broadly established or clearly impactful are evaluated using a Plant Risk Evaluator (PRE) tool; species considered high risk are given a "WATCH" rating and added to the inventory. Recent additions include blue corn lily (Aristea ecklonii) and herb-of-grace (Bacopa monnieri).

Look out for a follow-up post to learn about other recent additions or visit the following link to the Inventory to see all 2026 updates: https://www.cal-ipc.org/plants/inventory/

Join UCANR this Wednesday, 8/5, at 3pm for Tom Gett’s talk on “Invasive W**ds Management in Intermountain NorCal.” This ...
08/03/2026

Join UCANR this Wednesday, 8/5, at 3pm for Tom Gett’s talk on “Invasive W**ds Management in Intermountain NorCal.” This is the first of three talks in their Invasive W**d Species Miniseries, so stay tuned for more interesting presentations.

DPR credits available!

Register here: https://ucanr.zoom.us/webinar/register/WN_ytbhRX_1RPOc43iUd0aY7A #/registration

Address

Berkeley, CA

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+15108433902

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