Species Iris Group of North America
ATTENTION! SIGNA needs a replacement volunteer(s) effective immediately. SIGNA Seed Chairs have retired. After many years of dedicated service, 2013 was their final Seed List. Contact the President at krw25@cornell.edu to learn more. The future of the Seed Exchange needs YOU to continue! Please help, please volunteer. Thank you!
About Us Membership Publications Seed Exchange Species Database Spec-X
The Species Iris Group of North America (SIGNA) is dedicated to the study of the wild species of the genus Iris and related irids in order to promote a wider appreciation of these plants and their hybrids as garden ornamentals.

Our goal is to further their introduction and distribution through our seed exchange while supporting their conservation in the wild. We will disseminate scientific and cultural information about these plants to both our membership and the general public through our regular publications and website.

Although the name SIGNA includes the words "North America" we have members from all around the world such as Germany, Denmark, France, Switzerland, United Kingdom, Spain, Australia, New Zealand, and Japan. SIGNA is truly a global organization. This is not surprising because Irises are also found all over the world as shown in this distribution map from MOBOT.

To learn more please explore the rest of our website, starting here: Or you can join the Iris-Species email forum on Yahoogroups which is open to anyone (not just SIGNA members). There are about 250 members and the group has been active for 10+ years. To join send a blank message to iris-species-subscribe@yahoogroups.com.

© 2014, SIGNA. For general inquiries about SIGNA please contact krw25@cornell.edu. Please report technical problems to dkramb@badbear.com.