Amaranthus, commonly known as amaranth, is a genus of flowering plants in the family Amaranthaceae. It includes both annual and perennial species, many of which are cultivated for their edible leaves and seeds. Amaranth is known for its nutritional value, being rich in protein, fiber, and essential amino acids, making it a popular choice in various diets. These plants are often characterized by their vibrant, colorful flowers and can grow in a variety of environments. Some species, like Amaranthus caudatus, are also used ornamentally in gardens. Additionally, amaranth seeds are gluten-free, making them a suitable grain alternative for those with celiac disease or gluten intolerance.