Are Burretiokentia and Rebutia both types of plants?
Burretiokentia Burretiokentia is a genus of palms (Arecaceae) endemic to New Caledonia containing five species. The relationships between Burretiokentia and some other genera of the tribe Basseliniinae including "Physokentia" and the New Caledonia endemic "Cyphophoenix" are not clear.
Vernonia Vernonia is a genus of about 1000 species of forbs and shrubs in the family Asteraceae. Some species are known as ironweed. Some species are edible and of economic value. They are known for having intense purple flowers. The genus is named for the English botanist William Vernon. There are numerous distinct subgenera and subsections in this genus. This has led some botanists to divide this large genus into several distinct genera. For instance, the "Flora of North America" only recognizes about 20 species in "Vernonia" sensu stricto, 17 of which are in North America north of Mexico, with the others being found in South America.