zygocactus truncatus(n = noun.plant) crab cactus, schlumbergera truncatus, thanksgiving cactus - South American jointed cactus with usually red flowers; often cultivated as a houseplant; sometimes classified as genus Schlumbergera;
is a kind of cactus
is a member of genus zygocactus, zygocactus

chlamyphorus truncatus, genus zygocactus, schlumbergera truncatus, tursiops truncatus, zygocactus