Family: Poaceae

High Risk Traits:

• Exhibits environmental versatility (grows in a wide range of habitats)
  
• Grows in tropical climates
  
• Naturalized on Hawaii island and elsewhere (including India, Australia, California)
  
• Environmental weed (excludes native vegetation)
  
• Other Ehrharta species are invasive
  
• Increases fire risk
  
• Tolerates many soil types
  
• Forms dense and tall patches that exclude and replace native vegetation
  
• Reproduces primarily be seed (and rarely by rhizomes)
  
• Able to reach maturity in one year
  
• Seeds dispersed by wind, water, human activities, internally by grazing animals and possibly externally (attached to fur or feathers)
  
• Prolific seed production
  
• Forms a persistent seed bank
  
• Resprouts after fire

Low Risk Traits:

• Unarmed (no spines, thorns or burrs)
  
• Palatable to grazing animals (provides forage for livestock)
  
• Requires full sun
  
• Primarily outcrossing
  
• Rarely spreads vegetatively
  
• Herbicides may provide effective control