Herbs are plants grown for culinary, medicinal, or in some cases even spiritual value. The green, leafy part of the plant is typically used. General usage differs between culinary herbs and medicinal herbs. A medicinal herb may be a shrub or other woody plant, whereas a culinary herb is a non-woody plant. By contrast, spices are the seeds, berries, bark, root, fruit, or other parts of the plant, even leaves in some cases; although any of these, as well as any edible fruits or vegetables, may be considered "herbs" in medicinal or spiritual use. Culinary herbs are distinguished from vegetables in that they are used in small amounts and provide flavor (are spices) rather than substance to food.
Quality Control: Aristolochic Acid
Quality Control: Herbs
Quality Control: Microflora
Quality Control: Identity Test
Quality Control: TLC