barrel cactus Meaning, Definition & Usage

  1. noun a cactus of the genus Ferocactus: unbranched barrel-shaped cactus having deep ribs with numerous spines and usually large funnel-shaped flowers followed by dry fruits
  2. noun any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil
    echinocactus.

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