Which is cultivated across more continents, Clintonia or Washingtonia?
Clintonia Clintonia is a genus of flowering plants first described as a genus in 1818. It is distributed across North America and eastern Asia where it is found as an understory plant in woodlands. It was named after De Witt Clinton, an 18th-century botanist and U.S. politician.
Dryopteris clintoniana Dryopteris clintoniana, commonly known as Clinton's wood fern, is a fern of hybrid origin native to the northern hemisphere. It is a fertile hexaploid, arising as a species by doubling of its chromosome number from a hybrid between "Dryopteris cristata", a tetraploid, and "Dryopteris goldiana", a diploid. It is more northern in its range than either parent species.