Crinum asiaticum L.
Engl.: Asiatic poisonbulb, poisonbulb.
Deu.: Asiatische Hakenlilie, Giftlilie.
Bot. syn.: Crinum amabile Donn ex Ker-Gawl., Crinum toxicarium Roxb.
Karen tells me: "Hi Henriette, Just a quick note telling you that the leaves of this plant are used in Thai healing arts to cover salt pots that were heated on coalfire to massage the abdomen of the postpartum mother. It is said the leaves are good for the skin."
I have no articles for this botanical term, but there might be some for the next level down (if found).