Which genus between Borago and Banksia has the greatest number of species within the genus?
Banksia Banksia is a genus of around 170 species in the plant family Proteaceae. These Australian wildflowers and popular garden plants are easily recognised by their characteristic flower spikes and fruiting "cones" and heads. Banksias range in size from prostrate woody shrubs to trees up to 30 metres tall. They are found in a wide variety of landscapes; sclerophyll forest, (occasionally) rainforest, shrubland, and some more arid landscapes, though not in Australia's deserts.
Banksia rufa Banksia rufa is a shrub endemic to Western Australia. It was first published by Carl Meissner in 1855, where it was given the name Dryandra ferruginea by Richard Kippist. The following year, Meisner published what was purportedly a distinct species, "Dryandra runcinata". In 1870, George Bentham maintained "D. runcinata", but demoted "D. ferruginea" to a variety of "Banksia proteoides" (King Dryandra). This stood until 1996, when Alex George restored the specific rank of "D. ferruginea", and declared "D. runcinata" its synonym.