Maple: Fasciation

categories: Maple Maple Diseases Ornamental trees Ornamentals

revision date: 2022-11-25 10:01

Fasciation showing a flattened, twisted, ribbed stem.
Fasciation showing a flattened, twisted, ribbed stem
Photo by: R.S. Byther


Fasciation is a plant deformity which results in abnormally flattened stems. It is the result of a mutation in the growing point of the stem and is not a disease. Instead of being round, affected stems are flat or ribbed in appearance, and may be bent or curved in odd patterns. The leaves produced on the flattened stems usually appear normal, but may be somewhat undersized. Usually only a portion of a plant displays fasciation. Although not contagious, fasciation may sometimes be spread by seeds or through propagation of affected plant parts.

Management Options

Use Integrated Pest Management (IPM) for successful plant problem management.

Non-chemical Management

Select non-chemical management options as your first choice!

  • Prune out misshapen portions of affected plants.
  • Remove affected plants, if desired.

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.

  • None recommended