Botany · IAPPSInternational Association for the Plant Protection Sciences (IAPPS)http://www.plantprotection.org/
Botany · IASPRRInternational Association of Sexual Plant Reproduction Research (IASPRR)http://www.iasprr.org/
Botany · IOPIInternational Organization for Plant Information (IOPI)http://plantnet.rbgsyd.nsw.gov.au/iopi/iopiclc1.htm