Banksia splendida subsp. macrocarpa is a subspecies of Banksia splendida. It was known as Dryandra speciosa subsp. macrocarpa until 2007, when Austin Mast and Kevin Thiele transferred all Dryandra species into Banksia. Since a species named Banksia speciosa already existed, Mast and Thiele had to choose a new specific epithet for D. speciosa and its subspecies. Like other members of Banksia ser. Dryandra, it is endemic to the South West Botanical Province of Western Australia.
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