#cactus  any spiny succulent plant of the family Cactaceae native chiefly to arid regions of the New World
  supertype:  succulent  a plant adapted to arid conditions and characterized by fleshy water-storing tissues that act as water reservoirs
  subtype:  pitahaya_cactus  rattail_cactus  living_rock  saguaro  night-blooming_cereus  coryphantha  echinocactus  hedgehog_cereus  rainbow_cactus  epiphyllum  barrel_cactus  Easter_cactus  night-blooming_Hylocereus_cactus  Lemaireocereus_chichipe  mezcal  mammillaria  feather_ball  garambulla_cactus  Knowlton's_cactus  nopal  prickly_pear_cactus  Opuntia_cholla  mistletoe_cactus  Christmas_cactus  night-blooming_Selenicereus_cactus  crab_cactus
  member of:  family_Cactaceae__Cactaceae__cactus_family  constituting the order Opuntiales
     member of:  order_Opuntiales__Opuntiales  coextensive with the family Cactaceae: cactuses
        member of:  subclass_Caryophyllidae__Caryophyllidae  a group of families of mostly flowers having basal or free-central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks); Aizoaceae; Amaranthaceae; Batidaceae; Chenopodiaceae; Cactaceae (order Opuntiales); Nyctaginaceae; Phytolaccaceae; corresponds approximately to order Caryophyllales; sometimes classified as a superorder
           member of:  class_Dicotyledones__Dicotyledones__Dicotyledonae__class_Dicotyledonae__Magnoliopsida__class_Magnoliopsida  comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae
              member of:  class_Angiospermae__Angiospermae__Magnoliophyta__division_Magnoliophyta__Anthophyta__division_Anthophyta  comprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta)
                 member of:  division_Spermatophyta__Spermatophyta  seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (spore producing plants lacking vascular tissue and roots)
                    member of:  kingdom_Plantae__Plantae__plant_kingdom__plantkingdom  taxonomic kingdom comprising all living or extinct plants

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