joe-pye weed
Concise Oxford English Dictionary © 2008 Oxford University Press:
joe-pye weed/ˈʤəʊpʌɪwiːd/
▶noun a tall North American plant of the daisy family, with small purple flowers. [Eupatorium purpureum and E. maculatum.]
– origin C19: of unknown origin.
'joe-pye weed' also found in these Oxford entries:

