Ads are terrible, Ads are hell, and if they bother you, here's a reminder that you can avoid them altogether by listening to this podcast Ad-Free on the Crime Pays Patreon at : www.patreon.com/crimepaysbutbotanydoesnt The genus Baccharis is one of the largest and most diverse in the Composite Family, Asteraceae. It originated in South America a few dozen million years ago and has diversified and spread throughout South and North America and adapted to a variety of different habitats due to a number of key innovations such as tufted trichomes that secrete sticky wax, the abundant production of wind-dispersed seeds, and rapid growth, among other traits. When I was working for the railroad and frequently visiting abandoned industrial corridors in California, the genus Baccharis was one of the only native plants that was able to hold its own amidst the concrete, pollution and toxic soil of former industrial sites. Today we talk with Baccharis researcher Gustavo Heiden from Southern Brazil about his research and study of this tough and remarkable genus, where it originated and what makes it so successful.