Family: Asparagaceae

High Risk Traits:

• Broad climate suitability
  
• Naturalized in Australia and California
  
• Regarded as a potential environmental weed in Australia
  
• Potential fire hazard (flammability increases with age)
  
• Tolerates many soil types
  
• May form dense stands in native range
  
• Hybridizes with other Cordyline species
  
• Reproduces by seeds and suckering
  
• Spread by dumped garden waste in Australia
  
• Seeds dispersed by birds and intentionally by people
  
• May form a persistent seed bank
  
• Able to resprout after cutting

Low Risk Traits:

• Native to temperate climates (may only be a threat at higher elevations)
  
• Unarmed (no spines, thorns, or burrs)
  
• Palatable to animals and humans
  
• Ornamental
  
• Self-incompatible
  
• Herbicides may provide effective control