“a determinate, compressed, bisexual reproductive axis composed of megasporangia (carpels), microsporangia (stamens) and a sterile perianth composed of at least one sterile laminar organ”. G. Theißen, R. Melzer: Molecular Mechanisms Underlying Origin and Diversification of the Angiosperm Flower. Annals of Botany, Band 100, 2007, S. 603–619.; det svarer ret nøje til en definition, der bygger på et overblik over litteraturen, og som findes i: Richard M. Bateman, Jason Hilton, Paula J. Rudall: Morphological and molecular phylogenetic context of the angiosperms: contrasting the 'top-down' and 'bottom-up' approaches used to infer the likely characteristics of the first flowers. Journal of Experimental Botany, Band 57, 2006, S. 3471–3503. doi:10.1093/jxb/erl128
Katja E. Jaeger, Alexander Graf, Philip A. Wigge: The control of flowering in time and space. Journal of Experimental Botany, Band 57, 2006, S. 3415–3418. doi:10.1093/jxb/erl159
Laurent Corbesier, George Coupland: The quest for florigen: a review of recent progress. Journal of Experimental Botany, Band 57, 2006, S. 3415–3418. doi:10.1093/jxb/erl095
G. Theißen, R. Melzer: Molecular Mechanisms Underlying Origin and Diversification of the Angiosperm Flower. Annals of Botany, Band 100, 2007, S. 603–619. doi:10.1093/aob/mcm143
D. E. Soltis, A. S. Chanderbali, S. Kim, M. Buzgo, P. S. Soltis: The ABC Model and its Applicability to Basal Angiosperms. Annals of Botany, Band 100, 2007, S. 155–163. doi:10.1093/aob/mcm117
H. J. Rogers: Programmed Cell Death in Floral Organs: How and Why do Flowers Die? Annals of Botany, Band 97, 2006, S. 309–315. doi:10.1093/aob/mcj051
Richard M. Bateman, Jason Hilton, Paula J. Rudall: Morphological and molecular phylogenetic context of the angiosperms: contrasting the 'top-down' and 'bottom-up' approaches used to infer the likely characteristics of the first flowers. Journal of Experimental Botany, Band 57, 2006, S. 3471–3503. doi:10.1093/jxb/erl128
