Apium is a genus of flowering plants in the family Apiaceae, which includes several species commonly known as celery and parsley. The most well-known species is Apium graveolens, commonly referred to as celery, which is widely cultivated for its edible stalks and leaves. These plants are characterized by their aromatic properties and are often used in cooking for flavoring dishes. Apium species thrive in moist, temperate climates and are typically found in wetlands or near water sources. They are also valued for their nutritional benefits, including vitamins and minerals.