Are Roystonea and Diplolaena both types of shrubs?
Roystonea Roystonea is a genus of eleven species of monoecious palms, native to the Caribbean Islands, and the adjacent coasts of Florida and Central and northern South America. Commonly known as the royal palms, the genus was named for Roy Stone, a U.S. Army engineer. It contains some of the most recognizable and commonly cultivated palms in tropical and subtropical regions.
Dipsacus pilosus Dipsacus pilosus or small teasel is a species of biennial flowering plant in the family Caprifoliaceae. The epithet small refers to the flower heads which are smaller, globular and made up of white flowers with violet anthers and woolly spines.