rainbow cactus(n = noun.plant) Array - a stout cylindrical cactus of the southwest United States and adjacent Mexico; Array
is a kind of cactus
is a member of echinocereus, genus echinocereus
barrel cactus, cactus, cactus euphorbia, cactus family, cactus mouse, cactus wren, christmas cactus, crab cactus, easter cactus, garambulla cactus, golden barrel cactus, hedgehog cactus, knowlton's cactus, mistletoe cactus, orchid cactus, pitahaya cactus, prickly pear cactus, rainbow, rainbow fish, rainbow lorikeet, rainbow perch, rainbow pink, rainbow runner, rainbow seaperch, rainbow shower, rainbow smelt, rainbow trout, rat's-tail cactus, rattail cactus, redbird cactus, russian cactus, thanksgiving cactus, vine cactus