Family: Asteraceae

High Risk Traits:

• Broad climatic and environmental versatility
  
• A temperate species naturalized in areas with tropical or subtropical climates
  
• Widely naturalized, including on Maui and Hawaii islands
  
• A weed of gardens, lawns, flower beds, waste places, arable land, roadsides and several crops
  
• Other Senecio species are invasive weeds
  
• May poison livestock
  
• Host of crop viruses
  
• Tolerates many soil types
  
• Reproduces by seed
  
• Hybridizes with other Senecio species
  
• Self-fertile
  
• Reaches maturity rapidly (<1 year)
  
• Seeds dispersed by wind, water, in contaminated crop seeds, and on farm vehicles and equipment
  
• Prolific seed production
  
• Seeds may persist in the soil, although longevity varies
  
• May be resistant to some herbicides

Low Risk Traits:

• Palatable to animals and edible to people
  
• Limited vegetative spread
  
• Herbicides may provide effective control