1. Commonly cultivated tropical American cactus having slender creeping stems and very large showy crimson flowers that bloom for several days
   "The rattail cactus's dramatic blooms lasted nearly a week";
   - rat's-tail cactus, Aporocactus flagelliformis

Derived forms: rattail cacti

Type of: cactus

Part of: Aporocactus, genus Aporocactus

Encyclopedia: Rattail cactus