Source: California Invasive Plant Council


URL of this page: http://www.cal-ipc.org/ip/management/plant_profiles/Cynara_cardunculus.php

Cynara cardunculus (artichoke thistle)

Cynara cardunculus
Cynara cardunculus
Photo courtesy Joseph DiTomaso

Cynara cardunculus (artichoke thistle) is a large perennial thistle (family Asteraceae) found below 500 m elevations throughout California, except in the Great Basin and Desert Regions. Artichoke thistle prefers disturbed open sites, including grassland, chaparral, coastal scrub, and riparian areas. This thistle is closely related to cultivated artichokes (Cynara scolymus), and the two species hybridize frequently. Artichoke thistle is also sometimes grown as an ornamental plant, and is available commercially. It reproduces by seed and sometimes by resprouting from root fragments. When attempting control by mechanical removal, most of the plantís large taproot must be removed to avoid resprouting.

Cal-IPC Inventory rating: Moderate

Cal-IPC Resources on Cynara cardunculus

Cal-IPC News Articles

  • DeSimone, S. A. and S. E. Gibson (2010). Effects of an exotic herbaceous perennial, Cynara cardunculus, on small mammals and songbirds. Cal-IPC 2010 Symposium. Ventura, CA, California Invasive Plant Council.
  • (2006). "Conservation Across Borders" in San Jose. Cal-IPC News. 14: 11-12.
  • Holt, J. S. (2006). Ecological approaches for weed management. Cal-IPC Symposium, Rohnert Park, CA, California Invasive Plant Council.
  • Holt, J. S. (2005). Invasive plants research at UC Riverside. Cal-IPC News. 13: 12-13.
  • Kelly, M. (2000). Education: Wildland weed tours and talks. CalEPPC News. 8: 3-4.
  • Pitcairn, M. (2000). All weeds that have approved biological control agents, accidental introductions and others. CalEPPC News. 8.
  • Kelly, M. (1999). Roundup of Arundo projects reveals commitment, strategic weakness. CalEPPC News. 7: 4-9.
  • (1999). Richmond weed abatement ordinance. CalEPPC News. 7: 10.
  • Goode, S. (1998). Legendary stewardship award. CalEPPC News. 6: 10.
  • Kelly, M. (1998). Starr Ranch Sanctuary artichoke conference. CalEPPC News. 6: 6-7.
  • Kelly, M. (1997). Lessons from the front: Taking stock to avoid surprises. CalEPPC NEWS. 5: 4-7.
  • Stein, E. D. and V. Vartanian (1997). Killing the beast: A cooperative approach for control of Arundo donax in the Santa Ana River watershed. CalEPPC News. 5: 4-6,8.
  • (1994). Exotic pest plants of greatest ecological concern in California September 1994. CalEPPC News. 2: 10.
  • Pepper, A. and M. Kelly (1994). The ecology and management of the wild artichoke Cynara cardunculus. CalEPPC News. 2: 4-6.
  • (1993). California Exotic Pest Plant Council draft list exotic plants of greatest concern October 1993. CalEPPC News. 1: 6.
  • Perala, C., D. A. Hoover, et al. (1993). Control of exotic plants in an herbaceous understory. CalEPPC News. 1: 4-6.

Cal-IPC Symposium Proceedings

  • DeSimone, S. (2008). Exotic control and habitat enhancement in Southern Californian native grasslands at an Audubon California Preserve. California Invasive Plant Council Symposium 2008. Chico, CA, California Invasive Plant Council.
  • Dinkins, M. and D. Bieber (2008). The evolution of artichoke thistle (Cynara cardunculus) data management at Camp Pendleton, CA (1984-present). California Invasive Plant Council Symposium 2008. Chico, CA, California Invasive Plant Council.
  • Royall, M., M. Murdock, et al. (2007). Artichoke thistle (Cynara cardunculus) control efforts and community recovery in historic southern California rangeland. California Invasive Plant Council Symposium 2007. San Diego, CA, California Invasive Plant Council.
  • DeSimone, S. (2007). Non-chemical Exotic Control in Coastal Sage Scrub Restoration at an Audubon Preserve. California Invasive Plant Council Symposium 2007. San Diego, CA, California Invasive Plant Council.
  • Holt, J. S. (2006). Ecological approaches for weed management. Cal-IPC Symposium. Rohnert Park, CA.
  • Pirosko, C. and S. Schoenig (2004). Forbs working group. California Invasive Plant Council Symposium 2004. Ventura, CA.
  • Marushia, R. and J. S. Holt (2003). Patterns of seedling establishment in artichoke thistle, Cynara cardunculus. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
  • White, V. A. and J. S. Holt (2003). Prediction of Cynara cardunculus seedling development using a degree-day approach. California Invasive Plant Council Symposium 2003. Kings Beach, CA.
  • White, V. A. and J. S. Holt (2002). Effect of competition on artichoke thistle, Cynara cardunculus. California Exotic Pest Plant Council Symposium 2002. Sacramento, CA.
  • Burrascano, C. (2001). Review of the impact of invasive weeds on two endangered plant species: Acanthomintha ilicifolia (San Diego thornmint) and Monardella linoides ssp. viminea (willowly monardella). California Exotic Pest Plant Council Symposium 2001. San Diego, CA.
  • White, V. A. and J. S. Holt (2001). Emergence and development of Cynara cardunculus: Developing seedling removal strategies for an invasive weed. California Exotic Pest Plant Council Symposium 2001. San Diego, CA.
  • White, V. A. and J. S. Holt (2001). Invasion into four plant communities by artichoke rhistle, Cynara cardunculus. California Exotic Pest Plant Council Symposium 2001. San Diego, CA.
  • White, V. A., J. S. Holt, et al. (1999). Development and management of artichoke thistle, Cynara cardunculus. California Exotic Pest Plant Council Symposium '99. Sacramento, CA.
  • Kelly, M. (1998). SWAT: Special weed action teams as ambassadors for education and energy. California Exotic Pest Plant Council '98 Symposium. Ontario, CA.
  • Carrithers, V. F. (1997). Using Transline* herbicide to control invasive plants. California Exotic Pest Plant Council Symposium '97. Concord, CA.
  • Kelly, M. and A. Pepper (1996). Controlling Cynara cardunculus (artichoke thistle, cardoon, etc.). California Exotic Pest Plant Council Symposium '96. San Diego, CA.
  • Tidwell, B. (1994). An artichoke thistle success story. CalEPPC Symposium '94. Sacramento, CA.

Other Resources on Cynara cardunculus

  • 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.
  • CalPhotos - Images of plants taken mostly in California.
  • Natural Resource Projects Inventory - State database with information on resource management projects throughout California. Query by the species of interest.