Family: Blechnaceae

High Risk Traits:

• Thrives in tropical climates
  
• Other Blechnum species have become invasive
  
• Shade-tolerant
  
• Spores dispersed by wind and possibly water
  
• Planted intentionally by people
  
• Prolific spore production
  
• Limited ecological information makes accurate risk prediction difficult

Low Risk Traits:

• No reports of invasiveness or naturalization
  
• Unarmed (no spines, thorns or burrs)
  
• Non-toxic
  
• Ornamental
  
• Requires acidic to neutral soils
  
• Not reported to spread vegetatively