Iran's Natural Resources Gene Bank has been protecting seeds of natural species since 1994 as a government exclusive agent. During its activity, it has collected and maintained over 47000 accessions belonging about 4000 plant species, from all over Iran. In this section, biological information of each plant species is available as a comprehensive database. Providing and collecting information on the biological properties of seeds is not only important for facilitating plant protection for the gene banks, but also as a reference for researchers. In this section, following information will provide for species exist in the Natural Resources Gene Bank:botany, geographic distribution, flowering and ripening period, pollination, seed dispersal mechanisms, seed storage behavior (orthodox, recalcitrant and intermediate), storage, germination and dormancy breaking requirements, seed morphology along with the seed image.