STEP- Resources
Resources for Students and Professionals
Seed Images database – STEP has built one of the most comprehensive online seed image databases in the world. This site is available (for a fee) to anyone looking for seed photographs and descriptions that can aid you in identifying seeds.
Association of Official Seed Analysts, Inc.
Society of Commercial Seed Technologists
Society of Commercial Seed Technologists
International Seed Testing Association
Association of Official Seed Certifying Agencies
Association of American Seed Control Officials
Seed Identification List (This list represents those species that may appear on the Purity Exam.)