bedeguar

 
Pronunciation: /ˈbɛdɪgɑː/
(also bedeguar gall)

noun

  • a reddish moss-like growth on rose bushes, forming in response to the developing larvae of a gall wasp. Also called robin's pincushion.
    • The wasp is Diplolepis rosae, family Cynipidae

Origin:

late Middle English: from French bédégar, from Persian bād-āwar, literally 'wind-brought'