Gymnosporangium juniperi-virginianae

Family: Pucciniaceae | Genus: Gymnosporangium
Detachable: integral
Color: brown, orange
Texture: bumpy
Abundance:
Shape:
Season:
Related:
Alignment:
Walls:
Location: stem
Form:
Cells:
Possible Range:i
Common Name(s): Cedar-apple rust
Synonymy:

Juniper > Trunk/Branches > Unusual growths on branches

Cedar-apple rust
Gymnosporangium juniperi-virginiana

  • Brown 1/4 to 1 inch round woody galls on twigs
  • Bright orange, long tentacle like fungal structures emerge from galls in wet spring weather
  • Needles and twigs beyond galls may die on branches with many galls or on Rocky Mountain juniper

[click below for photos]

- University of Minnesota Extension: (2024) Juniper > Trunk/Branches > Unusual growths on branches©

Reference: https://apps.extension.umn.edu/garden/diagnose/plant/evergreen/juniper/branchesgrowths.html


Further Information:
Author(s)
Year
Title
License
University of Minnesota Extension
2024
https://creativecommons.org/publicdomain/mark/1.0/

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