Family: Myrtaceae

High Risk Traits:

• Naturalized and invasive in tropical/subtropical regions (Hawaii, Tahiti, Réunion, Mauritius)
  
• Environmental weed; forms dense, monotypic stands
  
• Congeneric weed (P. guajava is a serious pest)
  
• Allelopathic (inhibits other plants)
  
• Shade tolerant
  
• Reproduces by seed and vegetative suckers
  
• Self-fertile
  
• Prolific seed producer (25–70 seeds/fruit)
  
• Seeds dispersed by birds, pigs, and humans (including gut passage)
  
• Tolerates mutilation (vigorous regrowth from cut stumps)

Low Risk Traits:

• No spines, thorns, or burrs
  
• Not toxic to animals or humans
  
• No evidence of fire hazard
  
• No persistent seed bank (>1 year)
  
• Well-controlled by several herbicides (e.g., Garlon 4, glyphosate)