- This plant has a Plant Risk Evaluator rating of No PRE Rating
- This plant has been rated Moderate by the California Invasive Plant Council
- This plant has a California Invasive Plant Council Alert
Native to South Africa, Gazania linearis is an 8-10 inch tall mat-forming or clumping perennial with showy daisy-like flowers. It has oval to linear-shaped leaves that are dark green with woolly undersides. The 3 inch flower heads mature to tufts of hairy seeds as the petals die back. It is unlikely that the seeds are dispersed by wind. It may occasionally be dispersed by birds are water, but the vast majority of seeds likely fall below the parent plant. Flowers need to be deadheaded before seeds mature to prevent self-seeding. 'Colorado Gold' is a cultivar of Gazania linearis that is also known to reseed.
It has naturalized in riparian areas in Simi Valley, Thousand Oaks, and Ventura County. It is a problem in McClaren Park in San Francisco, where it jumped from a median strip running through the park and spread into the grasslands. See CalWeedMapper for current distribution in California outside of cultivation.
Why is this plant not included on the invasive plant list?
Gazania linearis was considered for addition to the list in 2016 but was not added to the survey because the impact and risk is too low, and because more research is needed as to whether it is more than a waif. There is very little published literature on this species.
For more information about this plant, please see the following resources: