Flower names (obscure)

Begonia is a pretty flower named for French administrator and amateur horticulturalist Michel Bégon, who was an avid naturalist but also a proponent of slavery. A rare floral choice which has never really caught on as a baby name, Begonia would certainly stand out from the Lilys and Roses.

Not as well known as Calla Lilies, the Canna Lily is a tropical plant with large leaves and showy flowers; there was a 6th century Welsh Saint Canna, and it's also the name of a Scottish island.