Family: Poaceae

High Risk Traits:

• Naturalized throughout tropics and warm subtropics
  
• History of repeated, widespread cultivation
  
• Congeneric weed (Cymbopogon nardus)
  
• Host for crop pathogen (Puccinia purpurea)
  
• Tolerates wide soil pH (4.5–9.6) and multiple soil types
  
• Intentional human dispersal
  
• Tolerates and benefits from regular harvesting

Low Risk Traits:

• Frost sensitive; restricted to warm, humid tropics
  
• Not an agricultural or environmental weed
  
• Rarely produces seed; reproduced vegetatively
  
• Self-sterile, cross-pollinating
  
• No vegetative fragmentation; grows in clumps
  
• Prefers full sun; limited shade tolerance
  
• Upright clumping habit; does not smother or form dense thickets