Advertisement

Photo: A strange plant pathogen

1080 of 1411

This bulbous growth is known as cedar-apple rust (Gymnosporangium juniperi-virginianae), a plant pathogen that occurs where Eastern red-cedar and apple or crabapple trees live together. This growth is called a gall, and is found on a cedar tree.

Would you like to see your nature photo featured on TreeHugger? Join the TreeHugger Photo Pool on Flickr and add yours to the group!

1080 of 1411

More Slideshows