Winter, Klaus, Sage, Rowan F., Edwards, Erika J., Virgo, Aurelio, and Holtum, Joseph A.M. (2019) Facultative crassulacean acid metabolism in a C-3-C-4 intermediate. Journal of Experimental Botany, 70 (22). pp. 6571-6579.

Hancock, Lillian P., Holtum, Joseph A.M., and Edwards, Erika J. (2019) The evolution of CAM photosynthesis in Australian Calandrinia reveals lability in C₃+CAM phenotypes and a possible constraint to the evolution of strong CAM. Integrative and Comparative Biology, 59 (3). pp. 517-534.

Holtum, J.A.M., Hancock, L.P., Edwards, E.J., and Winter, K. (2018) Crassulacean acid metabolism in the Basellaceae (Caryophyllales). Plant Biology, 20 (3). pp. 409-414.

Hancock, Lillian P., Obbens, Frank, Moore, Abigail J., Thiele, Kevin, de Vos, Jurriaan M., West, Judy, Holtum, Joseph A.M., and Edwards, Erika J. (2018) Phylogeny, evolution, and biogeographic history of Calandrinia (Montiaceae). American Journal of Botany, 105 (6). pp. 1021-1034.

Holtum, Joseph A.M., Hancock, Lillian Pine, Edwards, Erika, and Winter, Klaus (2017) Facultative CAM photosynthesis (crassulacean acid metabolism) in four species of Calandrinia, ephemeral succulents of arid Australia. Photosynthesis Research, 134 (1). pp. 17-25.

Holtum, Joseph A.M., Hancock, Lillian P., Edwards, Erika J., and Winter, Klaus (2017) Optional use of CAM photosynthesis in two C4 species, Portulaca cyclophylla and Portulaca digyna. Journal of Plant Physiology, 214. pp. 91-96.