| zygocactus | (n) small genus of Brazilian cacti having flat fleshy usually branched joints and showy red or pink flowers followed by red fleshy fruits, Syn. genus Zygocactus |
| crab cactus | (n) South American jointed cactus with usually red flowers; often cultivated as a houseplant; sometimes classified as genus Schlumbergera, Syn. Schlumbergera truncatus, Zygocactus truncatus, Thanksgiving cactus |