Definition of bedeguar in English:


(also bedeguar gall)


  • A reddish mosslike growth on rose bushes, forming in response to the developing larvae of a gall wasp.

    The wasp is Diplolepis rosae, family Cynipidae

    Also called robin's pincushion
    • ‘Which reminds me, I have just learnt that a robin's pincushion is technically known as a bedeguar.’
    • ‘Also called a bedeguar gall or Robin's pincushion, this gall is formed by a Cynipid wasp, Diplolepis rosae, that overwinters in the gall in the larval stage, then completes its life cycle in the spring.’
    • ‘A bedeguar gall is not the product of a single larva but a group of larvae, each residing in their own chamber within the gall.’
    • ‘Of lesser importance are the small plant-feeding larvae of some Gall Wasps, which induce unusual plant growth resulting in gall formations, such as the bright red bedeguar galls on wild roses (often called ‘robin's pincushion ’).’


Late Middle English: from French bédégar, from Persian bād-āwar, literally ‘wind-brought’.