Have you ever walked through a plant nursery or garden center and wondered about who keeps track of all those named varieties, selections, and cultivars? The answer to this are horticultural taxonomists! From registering new plants to maintaining herbarium records and DNA barcoding, horticultural taxonomists really have their job cut out for them. Joining us to talk about this topic is Mathew Rees, a botanist for the Royal Horticultural Society. Learn how he and his colleagues manage to keep track of all the human-induced diversity among different groups of plants and gain insights into how science, horticulture, and sustainability are aiming to make things better for humans and the planet. This episode was produced in part by Kristina, Christine, Silas, Michael, Aristia, Felicidad, Lauren, Danielle, Allie, Jeffrey, Amanda, Tommy, Marcel, C Leigh, Karma, Shelby, Christopher, Alvin, Arek, Chellie, Dani, Paul, Dani, Tara, Elly, Colleen, Natalie, Nathan, Ario, Laura, Cari, Margaret, Mary, Connor, Nathan, Jan, Jerome, Brian, Azomonas, Ellie, University Greens, Joseph, Melody, Patricia, Matthew, Garrett, John, Ashley, Cathrine, Melvin, OrangeJulian, Porter, Jules, Griff, Joan, Megan, Marabeth, Les, Ali, Southside Plants, Keiko, Robert, Bryce, Wilma, Amanda, Helen, Mikey, Michelle, German, Joerg, Cathy, Tate, Steve, Kae, Carole, Mr. Keith Santner, Lynn, Aaron, Sara, Kenned, Brett, Jocelyn, Ethan, Sheryl, Runaway Goldfish, Ryan, Chris, Alana, Rachel, Joanna, Lori, Paul, Griff, Matthew, Bobby, Vaibhav, Steven, Joseph, Brandon, Liam, Hall, Jared, Brandon, Christina, Carly, Kazys, Stephen, Katherine, Mohsin Kazmi Takes Pictures, Manny, doeg, Daniel, Tim, Philip, Tim, Lisa, Brodie, Bendix, Irene, holly, Sara, and Margie.

Learn more about horticultural taxonomy at the Royal Horticultural Society

Why we must value urban forests

Learn more about the economic impacts of horticulture in the UK

Follow Mathew on Twitter: @Myosotis_Matt

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Music by Moneycat

Ferns and lycophytes are very special plants. Their origins date back hundreds of millions of years. Representatives of these two lineages can be found all over the globe and yet we know much less about them than we do flowering plants. My guest today is trying to change that. Joining us from the University of Florida is Dr. Weston Testo. Weston wants the world to know that ferns and lycophytes are not only incredible plants, they are also surprisingly diverse. What's more, a huge chunk of that diversity is the result of both genome duplication events and hybridization events between different species. The world of fern evolution is ripe for discovery and Dr. Testo and his colleagues are uncovering incredible information about these charismatic plants. Join us for a discussion about evolution and diversification of ferns and lycophytes. This episode was produced in part by Joanna, Griff, Philip, Paul, Matthew, Clark, Bobby, Kate, Steven, Brittney, McMansion Hell, Joey, Catherine, Brandon, Hall, Vegreville Creek and Wetlands Fund, Kevin, Oliver, John, Johansson, Christina, Jared, Hannah, Katy Pye, Brandon, Gwen, Carly, Stephen, Botanical Tours, Moonwort Studios, Lisa, Liba, Lucas, Mohsin Kazmi Takes Pictures, doeg, Clifton, Stephanie, Benjamin, Eli, Rachael, Anthony, Plant By Design, Philip, Brent, Ron, Tim, Homestead Brooklyn, Brodie, Kevin, Sophia, Brian, Mark, Rens, Bendix, Irene, Holly, Caitlin, Manuel, Jennifer, Sara, and Margie.