Family: Euphorbiaceae

Euphorbia polyacantha is a species of succulent plant known for its unique growth form, characterized by densely packed stems covered with sharp spines. It is native to parts of East Africa, particularly in regions like Somalia and Ethiopia and typically grows in dry, arid environments, such as rocky hillsides and savannas. Euphorbia polyacantha is sometimes grown as an ornamental plant, particularly by collectors of succulents and cacti. It is not currently documented as naturalized outside its native range. Caution: The sap of this plant is reported to be toxic if ingested or if it comes in contact with the eyes or skin.

High Risk Traits:

• Adapted to, and could potentially spread, in regions with arid tropical climates
  
• Other Euphorbia species are invasive weeds
  
• Spiny
  
• Unpalatable to browsing animals
  
• Sap toxic to animals and people
  
• Reproduces by seeds
  
• Seeds dispersed by dehiscence of capsules and through intentional cultivation
  
• Gaps in biological and ecological information may reduce accuracy of risk prediction

Low Risk Traits:

• No reports of naturalization or invasiveness
  
• Grows best in high light environments (dense shade may inhibit spread)