feature request #6387
Updated by Andreas Müller over 2 years ago
The only possible ranks for cultivars are CULTIVAR, GREX, CULTIVAR_GROUP, GRAFT_CHIMAERA or DENOMINATION_CLASS.
See comment on ICultivarPlantName
www.actahort.org/chronica/pdf/sh_10.pdf
https://de.wikipedia.org/wiki/Internationaler_Code_der_Nomenklatur_der_Kulturpflanzen
https://en.wikipedia.org/wiki/Grex_(horticulture)
https://en.wikipedia.org/wiki/Graft-chimaera
Note: CONVAR was prior in this list too, but turned out to be not a cultivar rank.
We still need to discuss if graft-chimaera and demonitation classes are really ranks or only flags.