Welcome to Gallformers
The place to ID and learn about galls on plants in the US and Canada.
Here is a random gall from our database. This one is called Andricus pilularis and the photo was taken by Leslie Flint © CC-BY
Resources
- Our guide to gall identification.
- Detailed descriptions for our key filters.
- Glossary for plant and insect terms.
- To ID galls and other plant symptoms in Europe, visit bladmineerders.nl
Interesting Reading
- If you are new to galls Charley Eiseman and Noah Charney's Tracks & Signs of Insects & Other Invertebrates: A Guide to North American Species is a good place to start learning. It covers a lot more than just galls and is an excellent resource.
- A long-anticipated update to Russo's guide to galls of the Western US was recently released by Princeton University Press.
- Some advice on finding galls.