Family: Fabaceae

High Risk Traits:

• Thrives in tropical climates
  
• Naturalized on Oahu, (Hawaiian Islands) as well as the Philippines and East and southern Africa
  
• An environmental weed in Tanzania, and perhaps elsewhere in Africa, forming dense stands and excluding native vegetation
  
• Other Senna (and Cassia specie) are invasive
  
• Unpalatable to browsing and grazing animals
  
• Tolerates many soil types
  
• Forms dense thickets
  
• Reproduces by seeds
  
• Rapid growth
  
• Seeds dispersed by mud stuck to vehicles, by water, gravity and intentionally by people
  
• Able to coppice and resprout after cutting

Low Risk Traits:

• Unarmed (no spines, thorns, or burrs)
  
• Requires full sun (may prevent spread into intact forests)
  
• Not nitrogen fixing
  
• Not reported to spread vegetatively
  
• Herbicides may provide effective control