During data collection for "The Banksia Atlas" project, a single presumed natural hybrid between "B. prionotes" and "B. lindleyana" (porcupine banksia), with fruit like "B. lindleyana" but leaves intermediate between the two parents, was found north of Kalbarri National Park. At the time this was considered an important discovery, as the parent species were thought not to be closely related. Mast's analyses, however, place them both in a clade of eight species, though "B. lindleyana" remains less closely related to "B. prionotes" than "B. hookeriana". Hybrids of "B. prionotes" with "B. menziesii" (firewood banksia) have also been produced by artificial means, and presumed natural hybrids have been recorded.