false blossom

noun

Definition of false blossom

1 : a disease of the cranberry caused by a fungus (Exobasidium oxycocci) producing erect flower buds which produce malformed flowers that set no fruit or are sometimes replaced by a whorl of leaves or a branch

called also rosebloom

2 : a similar disease of cranberries caused by a virus and transmitted by a leafhopper (Scleroracus vaccinii)

called also Wisconsin false blossom