Family: Polygonaceae

High Risk Traits:

• Elevation range exceeds 1000 m, demonstrating environmental versatility
  
• Broad climate suitability
  
• Naturalized in regions with subtropical climates
  
• Widely naturalized, including Kauai, Maui, and Hawaii
  
• Disturbance and crop weed
  
• Potential environmental weed
  
• Other Rumex species are invasive
  
• Potentially poisonous to livestock because of the presence of soluble oxalates
  
• Alternate host of crop diseases
  
• Mild allergen
  
• Tolerates many soil types
  
• May form dense stands that exclude other vegetation
  
• Reproduces by seeds and vegetatively from creeping roots and rhizomes
  
• Seeds dispersed by wind, water, mud, animals, vehicle tires, agricultural operations, and as contaminants in seed, grain, and hay
  
• Can form a persistent seed bank
  
• Tolerates mowing and cutting

Low Risk Traits:

• May threaten higher elevations of regions with tropical or subtropical climates
  
• Unarmed (no spines, thorns or burrs)
  
• Palatable to animals (despite potential toxicity)
  
• Possibly Shade-intolerant
  
• Primarily dioecious
  
• Herbicides may provide effective control