fritillaria imperialis

https://www.tehrantimes.com/news/435186/Iran-s-precious-crown-imperial-on-the-brink-of-extinction

similar species in UK: Fritillaria Mileagris, extinct in some countries

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:535213-1

Some species of Jasmin are endangered, e.g Nacapule Jasmine:

https://www.iucnredlist.org/species/136751312/137376139

The word jasmine derives from the Persian name “Yasmine”, which translates to “gift from God”.

A Gajra is a flower garland that is worn by women across India during festive occasions, weddings, or as part of everyday traditional attire. They are made usually of varies types of jasmine flowers but rose, crossandra and barleria are also widely used in gajras.

Onam Festival :

https://www.floweraura.com/blog/about-onam-pookalam-and-the-flowers-used-for-it

http://www.walkthroughindia.com/festivals/top-30-celebrated-hindu-festivals-india/