Cloves are one of the highly prized spices, widely recognized all over the world for their medicinal and culinary qualities. They are the "flower buds" from evergreen rain-forest tree native to Indonesia.
Botanically, the spice belongs to the family of Myrtaceae of the genus; Sygyzium, and scientifically named as Sygizium aromaticum.
The flower buds are initially pale in color, gradually turn to green, and, finally develop into bright-red clove buds by the time of harvesting. Buds are generally picked up when they reach 1.5-2 cm in length.
Structurally, each bud consists of long calyx; terminating in four spreading sepals, and four unopened petals, which form a small ball (dome) at the center. The sweet aroma of cloves is due to eugenol, an essential oil in them.
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