An annual culinary herb of the carrot family, Apiaceae (Umbelliferae). It supplies four products: dill seed oil, dill leaf oil, dill seed, and dill leaf. Although all of the dill grown in the United States is one species, Anethum graveolens, a slightly different species, A. sowa, is grown in Asia. In the United States, two cultivars are grown, Mammoth and Bouquet. Bouquet is a tetraploid cultivar that was developed by treating Mammoth seed with colchicine and then selecting for a shorter (2–5 ft or 0.6–1.5 m) and more compact growth habit. Mammoth is a taller, more robust plant growing 4–8 ft (1.2–2.4 m) tall. Other varieties exist, such as those developed in India and Russia, but are not extensively grown here. Dill can be grown in most soil types in all areas of the United States, but most of the production is centered in Oregon, Washington, Florida, and California.