bluemax
Lotsa blue
According to the abstract of Gonella, Rivadavia and Fleischmann's article "The species is considered Critcally endangered according to the IUCN Red List categories and criteria".
If it gets Red Listed then it is likely to be added on Appendix One of the CITES species list.
Of course what follows is that if live propagants or portions of this species are to come into the US they would best come in soon. CITES listed species are devilishly difficult to import. I'm guessing our authors/discoverers have probably thought of this. I'm guessing that they also have considered that the CP hobby community is possibly the best way to increase the number of individual plants in the world. D. regia is very rare in the wild but there are many in cultivation.