Family: Crassulaceae

High Risk Traits:

• Able to grow in tropical climates
  
• Widely naturalized, including Kauai, Oahu, Lanai, Maui, and Hawaii
  
• Agricultural weed (invades rangelands and pastures, replacing grasses and legumes, and reduces productivity)
  
• Environmental weed (forms dense monospecific thickets displacing and inhibiting recruitment of native vegetation)
  
• Other Kalanchoe species have become invasive
  
• Possibly allelopathic
  
• Toxic to animals and humans
  
• Tolerates shade
  
• Forms dense, monotypic ground cover
  
• Reproduces by seeds and vegetatively by plantlets
  
• Able to hybridize with other Kalanchoe species
  
• Seeds and/or vegetative parts spread by wind, water, garden waste and intentionally

Low Risk Traits:

• Unarmed (no spines, thorns or burrs)
  
• Palatable, but toxic, to animals
  
• Ornamental
  
• Does not increase fire risk
  
• Fire may provide control
  
• Herbicides may provide effective control