Snakeweed

Snakeweed or snakeweeds are a common name of many species of plant:

• Bistorta bistortoides, more commonly western bistort
• Bistorta officinalis, more commonly common bistort
• Conium maculatum, more commonly hemlock
• Euphorbia hirta, more commonly hairy spurge
• Gutierrezia, also matchweed
  • Gutierrezia sarothrae, more fully as broom snakeweed
• Stachytarpheta, in Australia
  • Stachytarpheta cayennensis as blue snakeweed
  • Stachytarpheta jamaicensis as light-blue snakeweed
  • Stachytarpheta urticifolia as dark blue snakeweed