History of the Wild Mustard Plant and the Conquistadors

One of my favorite stories about herbs involves the Conquistadors. The mustard plant was introduced to the Americas by the conquistadors or their attendant Padres (depending on who you're listening to), who planted the fast sprouting seeds to mark their trails. The fast-flowering plants were seeded to show them a golden road back along their route (the yellow brick road?).An annual, wild mustard