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

Derived forms: rat's-tail cacti

Type of: cactus

Part of: Aporocactus, genus Aporocactus