feather ball
epiphyllum, orchid cactus
cactus
barrel cactus
Echinocereus
cactus:
any member of the family Cactaceae, a family of flowering New World succulent plants suited to a hot, semi-desert climate.
any succulent plant with a thick fleshy stem bearing spines but no leaves, such as euphorbs.
(quote-journal)
a cactus
cactus (gl)
a cactus (member of the Cactaceae)