Mustard is a plant, identified by its many small, yellow flowers. It grows well in places with temperate climates like the U.S., Nepal, Russia, and Canada.
French mustard can refer to any mustard from France. Dijon mustard is more synonymous with the ingredients used in the recipe (like brown mustard seeds and wine).
This sweet condiment made of honey and mustard is an excellent dipping sauce for foods like chicken strips. It's also a great ingredient for a dressing or glaze.