Noxious Weeds and Invasive Species

California fights noxious weeds

California's "Encycloweedia" has notes on Identification, Biology, and Management of Plants Defined as Noxious Weeds by California Law. There's a photo gallery as well as common names, scientific names and pest ratings...and more.

Many invasive plants are or have been sold in consumer nurseries -- and it is important that you plan your landscape and gardens carefully to avoid inadvertent contamination of your local ecosystem with noxious weeds.

Urban landscapes are as important as rural areas when it comes to reducing our invasive weed problem. Weeds anywhere create seeds that are distributed by the wind, water, birds and even our own boots and car tires.

Learn more about California's battle with urban and agricultural noxious weeds.