Allan Herbarium: Accessioned specimen(s).
Geesink, R. 1969: An account of the Genus Portulaca in Indo-Australia and the Pacific (Portulacaceae). Blumea 17(1): 275–301.
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.
Ogle, C.C.; de Lange, P.J.; Cameron, E.K.; Parris, B.S.; Champion, P.D. 2021: Checklist of dicotyledons, gymnosperms and pteridophytes naturalised or casual in New Zealand: additional records 2007–2019. Perspectives in Biosecurity Research Series 5: 45–116.