Family: Malvaceae

High Risk Traits:

• Elevation range exceeds 1000 m, demonstrating environmental versatility
  
• Thrives in tropical climates
  
• Naturalized on Kauai, Oahu, Maui, and Hawaii, Molokai and elsewhere
  
• Pasture weed, displacing more valuable forage plants
  
• Environmental weed, threatening rare and endangered species in the Hawaiian Islands
  
• Other Triumfetta species are invasive
  
• Burrs covered with hooked bristles
  
• Little or no forage value
  
• Tolerates many soil types
  
• Reproduces by seeds
  
• Self-compatible
  
• Able to reach reproductive maturity in 6 months
  
• Burrs attach to clothing and fur and disperse seeds
  
• Prolific seed production

Low Risk Traits:

• Requires disturbance for establishment
  
• Non-toxic
  
• Not reported to spread vegetatively
  
• Herbicides provide effective control
  
• Effectively controlled by uprooting, plowing, or burning