A molecular phylogenetic study in 2020 showed that as then circumscribed Boronia was polyphyletic, and species were moved to other genera, mainly Cyanothamnus. The split was accepted in a 2021 classification of the family Rutaceae. The following list shows the species accepted by Plants of the World Online, as of September 2021.
Unplaced names:
Boronia ovata Lindl. Boronia tenuior Domin
Former species Species no longer placed in Boronia include:
Cyanothamnus acanthocladus (Paul G.Wilson) Duretto & Heslewood (formerly Boronia acanthoclada) Cyanothamnus anemonifolius (A.Cunn.) Duretto & Heslewood – sticky boronia (formerly Boronia anemonifolia) Cyanothamnus baeckeaceus (F.Muell.) Duretto & Heslewood (formerly Boronia baeckeacea) Cyanothamnus bipinnatus (Lindl.) Duretto & Heslewood – rock boronia (formerly Boronia bipinnata) Cyanothamnus bussellianus (F.Muell.) Duretto & Heslewood (formerly Boronia busselliana) Cyanothamnus coerulescens (F.Muell.) Duretto & Heslewood – blue boronia (formerly Boronia coerulescens) Cyanothamnus defoliatus (F.Muell.) Duretto & Heslewood (formerly Boronia defoliata) Cyanothamnus fabianoides (Diels) Duretto & Heslewood (formerly Boronia fabianoides) Cyanothamnus inconspicuus (Benth.) Duretto & Heslewood (formerly Boronia inconspicua) Cyanothamnus inflexus (Duretto) Duretto & Heslewood (formerly Boronia inflexa) Cyanothamnus montimulliganensis (Duretto) Duretto & Heslewood (formerly Boronia montimulliganensis) Cyanothamnus nanus (Hook.) Duretto & Heslewood – small boronia (formerly Boronia nana) Cyanothamnus occidentalis (Duretto) Duretto & Heslewood (formerly Boronia occidentalis) Cyanothamnus penicillatus (Benth.) Duretto & Heslewood (formerly Boronia penicillata) Cyanothamnus polygalifolius (Sm.) Duretto & Heslewood – waxy boronia, dwarf boronia, milkwort boronia(formerly Boronia polygalifolia) Cyanothamnus quadrangulus Duretto & Heslewood – narrow-leaved boronia (formerly Boronia anethifolia) Cyanothamnus ramosus Lindl. (formerly Boronia ramosa) Cyanothamnus rigens (Cheel) Duretto & Heslewood – stiff boronia (formerly Boronia rigens) Cyanothamnus subsessilis Benth. Duretto & Heslewood (formerly Boronia subsessilis) Cyanothamnus tenuis Lindl. – blue boronia (formerly Boronia tenuis) Cyanothamnus warangensis (Duretto) Duretto & Heslewood (formerly Boronia warangensis) Cyanothamnus westringioides (Paul G.Wilson) Duretto & Heslewood (formerly Boronia westringioides) Cyanothamnus yarrowmerensis (Duretto) Duretto & Heslewood (formerly Boronia yarrowmerensis)
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