Stepelianthus of Madagascar
Andry Petignat surveys the species of the genus Stapelianthus – Madagascar endemics in the asclepiadoideae – that exhibit striking adaptations and unusual pollination strategies.
Maihueniopsis in Chile
Cactus explorer Elisabeth Sarnes takes us on a journey on the Chilean side of the Andes in search of the these diminutive cacti with delightful blooms.
A Closer Look at Mangaves
Award winning garden curator Brian Kemble shows us the potential of this burgeoning group of hybrids that combines the best attributes of Agave and Manfreda.
Background on the Richtersveld Desert Botanical Garden
Pieter Van Wyk, the founder and curator of the Richtersveld Desert Botanical Garden, tells us about the plants of the region and the story of the garden's creation.
Past Webinar: Conservation Forum
Watch the Spring 2026 Conservation Forum and find out about CSSA's recent conservation efforts around the world and in your own backyard
Socotra: The Forgotten Island
Plant Explorer Guillermo takes us to Socotra to see the many endemic succulents the Island has to offer.
Dudleyas: Unveiling Living Art on the cliffs, the New, Beautiful and Strange
Explore Dudleyas in the wild with succulent legend Kelly Griffin, co-author of a recent book on the genus.
Australian Cycads along with other Spinescent & Xerophytic Succulent Plants
Australian plant guru Attila Kapitany shows us cycads and spiny plants from the wilds of his home country.
Argentina Cacti: the Importance of Habitat Knowledge in Taxonomy
Plant Explorer Guillermo Rivera explains how geographic proximity and other factors can provide a framework for evaluating lumper versus splitter debates.
Past Webinar: Creating More Compelling Images with Greater Impact
Cacti and other succulents have some of the most sculptural forms with amazing designs, textures, and colors. Join Irwin for a lively discussion of light, composition, plant portraiture, and landscapes.