Showy lady's slipper (Cypripedium reginae), by David McAdoo

How do plants make a living? That question has propelled botanist Dennis Whigham for his nearly 47-year career with the Smithsonian. Orchids were especially bewitching. On Aug. 20, join Dennis for a journey of discovery through the orchid world. He’ll take you from their unlikely beginnings as “dust seeds,” to the microscopic fungi they depend on to thrive, to their quirky—or downright sneaky—strategies to get pollinated. He’ll also reveal some of the most shocking discoveries, including the realization that more than half our continent’s native orchids are in trouble. Discover how stewards across the continent are rallying to save native orchids through the North American Orchid Conservation Center, and what you can do to help ensure their survival.

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