• Stachys latidens (broadtooth hedgenettle) | USDA PLANTS Database (About This Site)
• Stachys latidens | Biota of North America Project (BONAP) (About This Site)
• Stachys latidens Small | Plants of the World Online (POWO) (About This Site)
• Stachys latidens | NatureServe Explorer (About This Site)