Chase, M. W. & J. L. Reveal (2009). «A phylogenetic classification of the land plants to accompany APG III». Botanical Journal of the Linnean Society. 161 (2): 122–127. doi:10.1111/j.1095-8339.2009.01002.x.
Christenhusz, M.J.M. og J.W. Byng (2016). «The number of known plants species in the world and its annual increase». Phytotaxa. 261 (3): 201–217. ISSN1179-3163. doi:10.11646/phytotaxa.261.3.1.
Bell, C. D., D. E. Soltis & P. S. Soltis (2010). «The age and diversification of the angiosperms re-visited». American Journal of Botany. 97 (8): 1296–1303. doi:10.3732/ajb.0900346.CS1-vedlikehold: Flere navn: forfatterliste (link)
Thien, Leonard, Tammy L. Sage, Tanguy Jaffré, Peter Bernhardt, Vincenza Pontieri, Peter H. Weston, Dave Malloch, Hiroshi Azuma, Sean W. Graham, Marc A. McPherson, Hardeep S. Rai, Rowan F. Sage & Jean-Louis Dupre (2010). «The population structure and floral biology of Amborella Trichopoda (Amborellaceae)». Annals of the Missouri Botanical Garden. 90 (3): 466–490. doi:10.3732/ajb.0900346.CS1-vedlikehold: Flere navn: forfatterliste (link)
Haston, E., J. E. Richardson, P. F. Stevens, M. W. Chase & D. J. Harris (2009). «The Linear Angiosperm Phylogeny Group (LAPG) III: a linear sequence of the families in APG III». Botanical Journal of the Linnean Society. 161 (2): 128–131. doi:10.1111/j.1095-8339.2009.01000.x.CS1-vedlikehold: Flere navn: forfatterliste (link)
Christenhusz, M.J.M. og J.W. Byng (2016). «The number of known plants species in the world and its annual increase». Phytotaxa. 261 (3): 201–217. ISSN1179-3163. doi:10.11646/phytotaxa.261.3.1.