Cucumber

Cucumber is the edible fruit of a climbing plant in the Cucurbitaceae family, which also includes melon, pumpkin, and zucchini. Its scientific name is Cucumis sativus. Although it is commonly used as a vegetable, cucumber is botanically a fruit because it develops from the flower's ovary and contains seeds. The plant has long, creeping or climbing stems with broad leaves and separate male and female flowers.

The fruit is usually elongated and green, with a crisp, watery flesh. Depending on the variety, its skin may be smooth or covered with small bumps, and some cultivars produce yellow, pale green, or nearly white fruits. Cucumber was domesticated in South Asia and has been cultivated for thousands of years. It is now grown in many warm and temperate regions, both outdoors and in greenhouses.

Cucumber is commonly eaten raw in salads, sandwiches, and cold dishes, but it can also be cooked, pickled, or fermented. Its high water content gives it a refreshing texture, while its flavor is generally mild. Cucumbers provide small amounts of vitamin K, vitamin C, folate, potassium, and dietary fiber, with much of the fiber concentrated in the skin. The seeds are also edible and contribute nutrients.

Some varieties contain cucurbitacins, naturally occurring compounds that can produce a bitter taste; modern cultivated cucumbers are generally selected for low levels of these substances. Cucumbers used for pickling are often harvested while still small, whereas slicing varieties are allowed to grow larger. Storage conditions affect their texture, and prolonged exposure to very cold temperatures can cause chilling damage and make the flesh softer.