Thanks to donors like you, Cal-IPC leads the land management community in protecting California’s environment and economy from invasive plants.

Your gift at any level helps us continue this important work.

Thistle_Hill volunteers

Your donation keeps us in the weeds – pulling, planning, mapping, educating, and sharing knowledge.

If you are a Cal-IPC member, you can sign-in to your account using the “log-in” icon. Not a member? Prefer not to sign in? Simply use the form below with your preferred email.

Once you have entered contact information, you will be taken to a secure page to enter payment information.

Please note: The database uses “cookies” to save your sign-in information. It will remember you on this page if you have already visited our site. If you are having trouble,  please try in either a Firefox or Chrome browser, or change your setting to allow cookies. Still confused? Contact us:

Powered by Wild Apricot Membership Software

Prefer to donate by mail? Mail checks to: Cal-IPC, 1442-A Walnut St. #462, Berkeley, CA 94709

Questions? Contact us at or 510-843-3902