About Us

Gallformers is the product of curious amateurs becoming obsessed. If you are here then you too have at least been touched, if not bitten, by the gall bug. It grows in you, but it is not a parasite nor an inquiline.

While you are here we hope that we can help you both ID an unknown plant gall as well as to learn about galls. Whether your interests are very casual, you are a burgeoning scientist, or even a full-fledged cecidiologist we strive to provide useful tools.

This site is open source and you can view the all of the code/data and if so inclined even open a pull request on GitHub. Any and all help is greatly appreciated!

We have a Patreon account where you can donate to help cover the costs of building and operating the site.

Contacting Us

You can contact us at gallformers@gmail.com or @gallformers on Twitter.

Our Co-founders

Adam Kranz

Adam is an independent ecologist focused on gall inducing organisms in North America. He co-founded Gallformers.org as a community resource to help naturalists identify gall observations and to collect information on undescribed galls. His primary focus is on adding literature and information to the Gallformers database.

Jeff Clark

Jeff is a Software Engineer who stumbled upon galls and became obsessed. So much so that he co-founded this site, wrote all the code for this site, and is responsible for keeping it going, fixing it, and implementing new features, and paying the bills. If the site is broken, it is most likely his fault. He is also way too into Oaks and will (HOPEFULLY) soon start building an ID tool for them.


We also have an ever growing list of people that help us out as site administrators, without who the site would be far poorer. If you are interested in becoming an administrator reach out:

Current Site Stats:

As of Sun, 14 Jul 2024 03:51:31 GMT there are:
  • 3406 gallformers across 80 families and 343 genera, of which 1272 are undescribed
  • 1937 hosts across 133 families and 553 genera
  • 785 sources

Citing Gallformers

All of our original content is released under a CC-BY license.

Gallformers would be impossible without the many contributions from the scientific literature as well as the many individuals that have allowed usage of their wonderful photos. We have made every effort to verify and document the license for all content that we use. If you find anything that you think is incorrect please contact us: Email or Twitter

If you are interested in using information on Gallformers in your own research please do. All we ask is that you cite Gallformers and that if you are using any content that is not original to Gallformers that you please cite the original source. When applicable, please cite the specific ID Notes containing the claim being cited.

“Gallformers Contributors.” Www.gallformers.org, www.gallformers.org. Accessed [date]‌
“Gallformers Contributors.” “[Species name]” Notes on ID and Taxonomy, Www.gallformers.org/[url to specific species], www.gallformers.org. Accessed [date]‌
Build: 202446-1846.657

Gall Me Maybe