schlumbergera buckleyi(n = noun.plant) christmas cactus, schlumbergera baridgesii - epiphytic cactus of Brazilian ancestry widely cultivated as a houseplant having jointed flat segments and usually rose-purple flowers that bloom in winter;
is a kind of cactus
is a member of genus schlumbergera, schlumbergera

genus schlumbergera, schlumbergera, schlumbergera baridgesii, schlumbergera gaertneri, schlumbergera truncatus