1. 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. Any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil
   - echinocactus

Derived forms: barrel cacti

Type of: cactus

Part of: Ferocactus, genus Echinocactus, genus Ferocactus

Encyclopedia: Barrel cactus

• acrobat
• Acrobates
• acrobatic
• acrobatic feat
• acrobatic stunt
• acrobatically
• acrobatics
• acrocarp
• acrocarpous
• acrocarpous moss
• Acrocarpus
• Acrocarpus fraxinifolius
• acrocentric
• acrocentric chromosome
• Acrocephalus
• Acrocephalus schoenobaenus
• acrocephaly
• Acroclinium
• Acroclinium roseum
• Acrocomia
• Acrocomia aculeata
• Acrocomia vinifera
• acrocyanosis
• acrodont
• acrogen