Think you have an invasive plant or noxious weed?
Explore this section to learn about some of the most common and/or problematic species in Santa Barbara County. We include both the scientific name and the common name. Some species have no common name and some have several. Keep in mind, there are over 700 non-native plant species that occur in wildlands in Santa Barbara County; so not all of them are listed here. Many of these species have multiple “look alikes” that are not invasive or harmful. There are over 2000 native species in Santa Barbara County.
If you are unsure about the identity of a plant, check with a botanical expert before you spend time and resources to remove it.
We can help!
Explore the information below to help you identify the plant. If you need assistance or wish to report a sighting of one of these plants, go to Invasive Plant Identification and Reporting.
Types of Invasive Plants
Click on the image below to explore photos and information on common plants in each category.
These pages contain images from Weeds of California and Other Western States, by Joseph M. DiTomaso and Evelyn A. Healy (University of California Agriculture and Natural Resources Publication 3488), Copyright © 2007 The Regents of the University of California. All rights reserved. The images are for personal or educational use only. Images may not be used for commercial uses without written permission of the publisher. Duplication, distribution, or sale of the content or images here is prohibited.
For information about ordering this publication with the CD (sold only as a set):
University of California
Agriculture and Natural Resources
Communication Services – Publications
6701 San Pablo Avenue
Oakland, California 94608-1239