Parsley is a flowering plant native to the Mediterranean. The two most common types are French curly-leaf and Italian flat-leaf. Over the years parsley has been used to treat conditions like high blood pressure allergies and inflammatory diseases. Today itâs widely used as a fresh culinary herb or dried spice. Itâs brightreen in color and has a mild bitter flavor that pairs well with many recipes. Often labeled as one of the most powerful disease-fighting plants parsley providesreat nutritional value and offers many potential health benefits.