What is that strange orange growth on this tree?

A gall on a Eastern red cedar

Phenomenon Description: Unusual orange growth on an Eastern Red Cedar. 
Location: North Carolina 
Grade Level or Course: 8

 

Question: What is that strange orange growth on this tree?
Crosscutting Concepts: Cause and Effect
Science Domain: Life Science 
NC Standard: LS.8.1 - Understand the hazards caused by agents of diseases that affect living organisms.
NC Objective: LS.8.1.1 - Construct an explanation to compare the basic characteristics of viruses, bacteria, fungi and parasites related to the spread, treatment and prevention of disease.

 

Additional Resources:
https://content.ces.ncsu.edu/cedar-apple-rusts
 

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