 It was first described in 1920 by Richard Thomas Baker and Henry George Smith who gave it the name "Eucalyptus nepeanensis" from specimens collected at St Marys.The description was published in their book, "A Research on the Eucalypts especially in regard to their Essential Oils".In 1922, Joseph Maiden listed the name as a synonym of "Eucalyptus bosistoana" in his book, "A Critical Revision of the Genus Eucalyptus".