I am trying to source seeds/seedlings of native species of flora of UAE. Would anyone know how I can source them? Thanks a bunch!

Thanks … Appreciate it. I design landscapes using only native plants of each region. Some people seeing me do this in India wanted to know if I could do this in UAE. While I am aware of the species there and have collected a lot of interesting information about them, sourcing seeds/cuttings/seedlings seems a road block. I have sourced at least 15 species from nurseries there. But I know we would need at least 70-80 more! If anyone can help it would be a great favour towards making sustainable landscapes in a country so steeped in being unsustainable! Thanks very much again.