Family: Fabaceae

High Risk Traits:

• Broad climate suitability (wide altitudinal and climatic range)
  
• History of repeated introductions outside native range
  
• Congeneric weed
  
• Host for crop pests and pathogens
  
• Tolerates wide range of soil conditions (saline, waterlogged, poor, limestone)
  
• Nitrogen-fixing (can alter soil nutrients)
  
• Produces viable seed
  
• Propagules dispersed intentionally by people
  
• Persistent seed bank (seeds require scarification)
  
• Tolerates coppicing and mutilation

Low Risk Traits:

• No evidence of naturalization outside native range
  
• Not reported as a weed (garden, agricultural, or environmental)
  
• Thornless in some varieties
  
• Not allelopathic or toxic to animals
  
• Not shade tolerant
  
• Does not form dense thickets
  
• No wind, bird, or animal dispersal
  
• Not a prolific seed producer