Dr Marco Duretto is a plant scientist whose main research focus is on the classification (taxonomy) and evolution of the Orange and Boronia family Rutaceae (Citrus), which are found almost worldwide with around 2,500 species in total, 500 of them endemic to Australia. His work has focused on documenting biodiversity and ranges from the description of species new to science and assessing conservation status of species, to global collaborations on the classification and evolution of the entire family.

He leads the Plant Diversity Section, part of the Australian Institute Botanical Science, Royal Botanic Gardens and Domain Trust, which delivers world-class taxonomic, conservation and systematic research as well as providing the online Flora of NSW and a Botanical Identification service. He has a passion for cooking (especially with Citrus), and loves working with educators to get botanical knowledge out to and appreciated by everyone.