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cup-and-saucer vine

American  
[kuhp-uhn-saw-ser] / ˈkʌp ənˈsɔ sər /

noun

  1. a woody, Mexican vine, Cobaea scandens, of the phlox family, having bell-shaped, violet-colored or greenish-purple flowers with an inflated, leaflike calyx and long, curved stamens.