Family: Onagraceae

High Risk Traits:

• Elevation range exceeds 1000 m, and able to grow in >5 hardiness zones, demonstrating environmental versatility
  
• Naturalized in locations with subtropical climates (possibly only at higher elevations)
  
• Widely naturalized
  
• A disturbance-adapted weed with possible negative environmental effects
  
• Tolerates many soil types
  
• Self-compatible
  
• Able to reach maturity in <1 year
  
• Seeds dispersed intentionally and unintentionally by people, by wind, and water
  
• May form a persistent seed bank
  
• Older plants tolerant of glyphosate

Low Risk Traits:

• May only threaten higher elevations in tropical and subtropical regions
  
• Unarmed (no spines, thorns or burrs)
  
• Provides fodder for livestock
  
• Ornamental
  
• Beneficial to pollinators
  
• Requires full sun
  
• Not reported to spread vegetatively
  
• Herbicides may provide effective control of younger plants