Family: Myrtaceae

High Risk Traits:

• Adaptable to a range of environmental conditions (possesses environmental versatility)
  
• Native to Mediterranean climate, but able to grow in tropical climates
  
• Naturalized outside native range in Australia
  
• Regarded as a weed in Australia, with potential negative environmental impacts
  
• Other species have become invasive
  
• Unpalatable to browsing animals (due to essential oils)
  
• Potential host of myrtle rust
  
• Tolerates many soil types
  
• Forms dense stands in native range
  
• Reproduces by seeds
  
• Hybridizes with other Calothamnus species
  
• Self-compatible
  
• Seeds dispersed by people (and possibly wind)
  
• Serotinous - seeds persist on plants for years prior to release
  
• Able to resprout after cutting, hard pruning and fire

Low Risk Traits:

• Unarmed (no spines, thorns, or burrs)
  
• Ornamental
  
• Not reported to spread vegetatively
  
• Seeds remain on plant until fire triggers release (may limit ability to spread in absence of fire)