Definition of fasciation
: a malformation of plant stems commonly manifested as enlargement and flattening as if several stems were fused
Recent Examples of fasciation from the Web
This is a plant often distorted by fasciation, stalks flattening and growing broader than normal, or leaf shapes being distorted.
Plants especially susceptible to fasciation include ferns, willow trees, delphiniums, foxgloves, forsythia, euphorbias, lilies, primulas and verbascums such as the mullein.
Fasciation may be caused by mutation, virus, bacterial infection by bacterium known as Rhodococcus fascians, or injury to the meristem or growing part of the plant by insect, animal or human.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fasciation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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