From Tolkien Gateway

Niphredil was a small white flower that grew first at the moment of Lúthien's birth in Doriath.[1] It was also found among the golden trees of Lothlórien, thickest on Cerin Amroth, where some pale green varieties could be seen.[2][3]

It was like "a delicate kin of a snowdrop."[4]


Niphredil is a Sindarin name meaning "little pallor", consisting of niphred ("pallor") + the ending -il.[5]