Family: Asteraceae

High Risk Traits:

• Able to grow in 5 hardiness zones, demonstrating environmental versatility
  
• Able to grow in regions with subtropical climate
  
• Naturalized in Australia, Spain, California, and possibly elsewhere
  
• Regarded as an environmental weed in Australia
  
• Other Osteospermum species are weedy
  
• Toxic to livestock (contains hydrocyanic acid)
  
• Tolerates many soil types
  
• Reported to form dense stands in Australia
  
• Reproduces by seeds
  
• Able to reach maturity in <1 year
  
• Seeds dispersed by wind, water, dumped garden waste and intentionally by people
  
• Reported to resprout after cutting (if not uprooted)

Low Risk Traits:

• Unarmed (no spines, thorns, or burrs)
  
• Ornamental
  
• Thrives in high light environments (may not be able to invade forest understory)
  
• Not reported to spread vegetatively
  
• Herbicides may provide effective control