A clove (Syzygium aromaticum, syn. Eugenia aromaticum or Eugenia caryophyllata) is the aromatic dried flower bud of a tree in the family Myrtaceae. Cloves are native to Indonesia and India and used as a spice in cuisine all over the world. The English name derives from Latin clavus 'nail' (also origin of French clou 'nail') as the buds vaguely resemble small irregular nails in shape. Cloves are harvested primarily in Indonesia, Madagascar, Zanzibar, Pakistan, and Sri Lanka; they are also grown in India under the name Lavang. In Vietnam, it is called đinh hương.
The clove tree is an evergreen which grows to a height ranging from 8-12 m, having large square leaves and sanguine flowers in numerous groups of terminal clusters. The flower buds are at first of a pale color and gradually become green, after which they develop into a bright red, when they are ready for collecting. Cloves are harvested when 1.5–2 cm long, and consist of a long calyx, terminating in four spreading sepals, and four unopened petals which form a small ball in the centre.