Laurie - I believe Moraea Aristata is a native plant of Cape Town in South Africa. I am surprised that it is endangered because mine have multiplied well. It is easy to purchase in Australia. I purchased mine from Garden Express but it also available from Van Diemen Quality bulbs, Tesselaar and Ray's Unusual Plants, which sells 22 Moraea species.
https://raysunusualplants.com/...
There is a man in San Jose California who has created some beautiful new hybrids in many different colours. I highly recommend viewing his blog
https://growingcoolplants.blog...
His email address is on his welcome page
https://growingcoolplants.blog...