Family: Fabaceae

High Risk Traits:

• Broad climate suitability and environmental versatility
  
• Grows and spreads in tropical climates
  
• Naturalized in the Caribbean and Venezuela (no evidence in the Hawaiian Islands)
  
• A weed of pastures, disturbed areas, waterways, and wastelands (and reported to displace native species in these habitats)
  
• Other Senna species are invasive
  
• Potentially allelopathic
  
• Conflicting reports on unpalatability to browsing animals
  
• May possess toxic properties
  
• Tolerates many soil types (unlikely to be substrate limited)
  
• Reproduces by seeds
  
• Fast growth rate, and reaches maturity in <1 year
  
• Seeds dispersed internally by animals, water and intentionally by people
  
• Tolerates, or benefits from, cultivation, browsing pressure, mutilation, fire

Low Risk Traits:

• Unarmed (no spines, thorns, or burrs)
  
• Thrives in disturbed, high light environments (dense shade my limit spread)
  
• Not reported to spread vegetatively