Du Puy, D.J.; Telford, I.R.H.; Orchard, A.E. (1993). "Guettarda speciosa L., Fl. Australia 50". Flora of Australia Online. Canberra, ACT: Commonwealth of Australia. Archived from the original on 4 December 2021. Retrieved 21 May 2021.
Achille, Frédéric; Motley, Timothy J.; Lowry, Porter P.; Jérémie, Joël (2006). "Polyphyly in Guettarda L. (Rubiaceae, Guettardeae) Based on Nrdna ITS Sequence Data1,2". Annals of the Missouri Botanical Garden. 93: 103. doi:10.3417/0026-6493(2006)93[103:PIGLRG]2.0.CO;2. ISSN0026-6493.
Du Puy, D.J.; Telford, I.R.H.; Orchard, A.E. (1993). "Guettarda speciosa L., Fl. Australia 50". Flora of Australia Online. Canberra, ACT: Commonwealth of Australia. Archived from the original on 4 December 2021. Retrieved 21 May 2021.
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Achille, Frédéric; Motley, Timothy J.; Lowry, Porter P.; Jérémie, Joël (2006). "Polyphyly in Guettarda L. (Rubiaceae, Guettardeae) Based on Nrdna ITS Sequence Data1,2". Annals of the Missouri Botanical Garden. 93: 103. doi:10.3417/0026-6493(2006)93[103:PIGLRG]2.0.CO;2. ISSN0026-6493.