“A Night Fragrance” by W.S. Merwin

Now I am old enough to remember
people speaking of immortality
as though it were something known to exist
a tangible substance that might be acquired
to be used perhaps in the kitchen
every day in whatever was made there
forever after and they applied the word
to literature and the names of things
names of persons and the naming of other
things for them and no doubt they repeated
that word with some element of belief
when they named a genus of somewhat more than
a hundred species of tropical trees and shrubs
some with flowers most fragrant at night
for James Theodore Tabernaemontanus
of Heidelberg physician and botanist
highly regarded in his day over
four centuries ago immortality
might be like that with the scattered species
continuing their various evolutions
the flowers opening by day or night
with no knowledge of bearing a name
of anyone and their fragrance if it
reminds at all not reminding of him