question: Are Copiapoa and Lophospermum both cacti?
answer: no
context: Title: Copiapoa marginata
  Passage: Copiapoa marginata is a species of clump-forming cactus of South America.
  Title: Copiapoa
  Passage: Copiapoa is a genus of cacti from the dry coastal deserts, particularly the Atacama Desert, of northern Chile.  It comprises about 26 species.  These species vary in form from spherical to slightly columnar and in color from a brownish to blue-green body.
  Title: Cereus (plant)
  Passage: Cereus is a genus of cacti (family Cactaceae) including around 33 species of large columnar cacti from South America.  The name is derived from Greek (κηρός) and Latin words meaning "wax" or "torch".  The genus "Cereus" was one of the first cactus genera to be described; the circumscription varies depending on the authority.  The term "cereus" is also sometimes used for a ceroid cactus, any cactus with a very elongated body, including columnar growth cacti and epiphytic cacti.
  Title: Lophospermum
  Passage: Lophospermum is a genus of herbaceous perennial climbers or scramblers, native to mountainous regions of Mexico and Guatemala.  Those that climb use twining leaf stalks.  Their flowers are tubular, in shades of red, violet and purple, the larger flowers being pollinated by hummingbirds.  Now placed in the greatly expanded family Plantaginaceae, the genus was traditionally placed in the Scrophulariaceae.  The close relationship with some other genera, particularly "Maurandya" and "Rhodochiton", has led to confusion over the names of some species.
citations: Copiapoa Lophospermum