Which genus of plants contains a larger variety of species, Paulownia or Dendromecon?
Dendromecon Dendromecon, the tree poppy, is a genus of one or two species of shrubs to small trees, native to California and northern Baja California.
Cynanchum Cynanchum is a genus of about 300 species including some swallowworts, belonging to the family Apocynaceae. The taxon name comes from Greek "kynos" (meaning "dog") and "anchein" ("to choke"), hence the common name for several species is dog-strangling vine. Most species are non-succulent climbers or twiners. There is some evidence of toxicity.