Cardaria pubescens (hairy whitetop)

Cardaria pubescens

Photo courtesy Joseph DiTomaso

Cardaria pubescens (hairy whitetop) is a perennial (family Brassicaceae) that develops an extensive system of deep vertical and horizontal roots that vigorously produce new shoots. It is scattered throughout California, but is most frequently seen in the Sacramento Valley, Great Basin, and southwestern region of the state.

Cal-IPC Inventory rating: Limited

Cal-IPC Resources on Cardaria pubescens

• California Invasive Plant Inventory Assessment Form (pdf) - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.
• Cal-IPC News - Articles from our quarterly newsletter.(None for this species.)
• Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium. List of articles on Cardaria pubescens.

Cal-IPC News Articles

• None for this species.

Cal-IPC Symposium Proceedings

• DiTomaso, J. M. (2005). Efficacy and safety of new herbicides on the horizon. California Invasive Plant Council Symposium 2005. Chico, CA.
• Gerlach, J. D. (1997). How the west was lost: Reconstructing the invasion dynamics of yellow star-thistle and other plant invaders of western rangelands and natural areas. California Exotic Pest Plant Council Symposium '97. Concord, CA.

Other Resources on Cardaria pubescens

• USDA PLANTS database - Federal database with information on identification and distribution, and links to websites in individual states.
• Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from the UC Berkeley Jepson Herbarium.
• CalFlora - Distribution information by county based on submitted observations and herbarium specimens.
• Encycloweedia - Plants rated as noxious weeds by the California Department of Food and Agriculture.
• CalPhotos - Images of plants taken mostly in California.

Printer-friendly version