seed pods

Botany Blueprint: Burdock

Specimen #23: Burdock (Arctum minus) What do NASA astronauts, new parents, and cardiac surgeons have in common? They all owe a debt of gratitude to the common weed burdock, whose hook-tipped burrs inspired the invention of Velcro. Hailed as the revolutionary “zipperless zipper,” the hook-and-loop fastener has been used to adhere disposable diapers, artificial...