Family: Bignoniaceae

High Risk Traits:

• History of repeated introductions outside native range
  
• Produces viable winged seeds
  
• Propagules dispersed intentionally by people (ornamental use)
  
• Propagules adapted to wind dispersal

Low Risk Traits:

• No evidence of naturalization beyond native range
  
• No evidence of weediness (garden, agricultural, or environmental)
  
• No spines, thorns, or burrs
  
• No evidence of allelopathy, parasitism, or toxicity
  
• Not shade tolerant (requires sunny locations)
  
• No vegetative reproduction
  
• Minimum generative time of 4+ years (slow reproduction)