Germanea australis
| Germanea australis (R. Brown) Britten, Bot. Cook Voy. 2: 75. 1905. | BASIONYM: Plectranthus australis R. Brown 1810. | |
Moschosma australe
| Moschosma australe (R. Brown) Bentham, Labiat. Gen. Spec. 708. 1835. | BASIONYM: Plectranthus australis R. Brown 1810. | |
Plectranthus australis
| Plectranthus australis R. Brown, Prodr. 506. 1810. | | TYPE: AUSTRALIA: New South Wales: Port Jackson, 17 May 1802, Brown s.n. (lectotype: BM; isolectotypes: BRI, E, K). Lectotypified by S. T. Blake, Contr. Queensland Herb. 9: 35. 1971. |
Plectranthus australis var. vulgaris
| Plectranthus australis R. Brown, var. vulgaris Domin, Biblioth. Bot. 89: 564. 1928, nom. inadmiss. | BASIONYM: Plectranthus australis R. Brown 1810. | |
Plectranthus parviflorus
| Plectranthus parviflorus Willdenow, Hort. Berol. 1: t. 65. 1806. | | TYPE: Cult. in Berlin, without data, Herb. Willdenow 11078 (lectotype: B-W). Lectotypified by S. T. Blake, Contr. Queensland Herb. 9: 35. 1971. |
Plectranthus parviflorus var. australis
| Plectranthus parviflorus Willdenow, var. australis (R. Brown) Briquet, in Engler & Prantl, Nat. Pflanzenfam. 4(3a): 357. 1895. | BASIONYM: Plectranthus australis R. Brown 1810. | |
Germanea parviflora
| Germanea parviflora Poiret, in Lamarck, Encycl., Suppl. 2: 764. 1811. | BASIONYM: Plectranthus parviflorus Sprengel May 1806, non Willdenow Apr 1806. | |
Plectranthus australis forma densiflora
| Plectranthus australis R. Brown, forma densiflora Domin, Biblioth. Bot. 89: 564. 1928. | | TYPE: AUSTRALIA: Queensland: Tamborin Mountzin, s.d., Domin s.n. (holotype: PR). |
Plectranthus paniculatus
| Plectranthus paniculatus Jacquin, Fragm. 62, t. 91. 1806. | | TYPE: Cult. at Vienna, without data (lectotype: Jacquin, Fragm. t. 91. 1806). Lectotypified by A. J. Paton, in A. J. Paton et al., Phytokeys 129: 22. 2019. |
Plectranthus parviflorus
| Plectranthus parviflorus Sprengel, in Henckel von Donnersmarck, Adumbr. Pl. Hort. Hal. 17. May 1806, non Willdenow Apr 1806. | | |
Plectranthus parviflorus var. elatior
| Plectranthus parviflorus Willdenow, var. elatior Bentham, in de Candolle, Prodr. 12: 67. 1848. | | TYPE: AUSTRALIA: Northern Territory: Port Essington, s.d., Armstrong s.n. (holotype: K). |
Plectranthus sieberi
| Plectranthus sieberi Benth., Labiat. Gen. Spec. 710. 1835. | | TYPE: AUSTRALIA: Without data, Sieber s.n. (holotype: K). |