In general, herbs are any herb that is used as a food, flavor, medication, or felicitous for being sweet or delicious. Cooking uses herbs to spice herbs. Vegetables refer to green leaves or plant parts. (Fresh or dried), while spices from other parts of the plant include seeds, skin, root, and fruit (usually dried).
Vegetables are used in a variety of ways, including cooking, medicine and, in some cases, spiritual. In the medical or spiritual application of each part of the plant, such as leaves, roots, flowers, seeds, root skin, internal skin (bennedadvandi), vermicelli and porcupine may be considered as a vegetable.
In the year BC, the Sumerians used medical herbs in medicine. Ancient Egyptians used 1555 BCE, fennel, coriander and zeater. In 162 in ancient Greece, Galen was known for the complex herbal medicines with more than 100 compounds.  The Emperor Charlemagne (742-814) collected a list of 74 different herbs planted in her gardens. The connection between vegetables and health has been in the book of a collection of culinary methods before the Middle Ages in my country. The book promotes the use of vegetables and salads and claims in its introduction that he has consulted with the medical professors and philosophers of the king’s court in writing the book.
The cooked vegetables are distinctive. These vegetables are similar to spices to a small extent and are used to spice up food and not food. Vegetables may be: Puree or Lavender, or two-year parsley, or one-year-old basil. The green veggies can be as shrubs like roamarens or as tree leaves. Herb plants, which, according to their definition, can not be woody plants, are not. Some plants like dill and its seeds, or coriander leaves and seeds, use it as both herbs and spices. Also, there are some herbs like the mint, which are used both for cooking purposes and as a herb.