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Noun: horsetail milkweed
  1. Milkweed of southwestern United States and Mexico; poisonous to livestock
    "Ranchers carefully removed horsetail milkweed from their pastures";
    - poison milkweed, Asclepias subverticillata

Derived forms: horsetail milkweeds

Type of: milkweed, silkweed

Encyclopedia: Horsetail milkweed