The Cucumber (Cucumis sativus L., 1753) or watermelon is a vegetable belonging to the Cucurbitaceae family, originating in India.
It is a creeping or climbing plant when it finds supports, to which it attaches itself through tendrils produced by stems and branches (see also Melon).
The quadrangular stem is hairy with more or less evident edges. The leaves, rather large, are palmate-lobed, with long petioles, dark green and rough. The five-lobed yellow flowers, not very large, are unisexual, carried by the same plant (monoecious plant), the male ones in groups of about five subjects, the female ones are solitary or in pairs. The fruit is a pulpy berry rich in water.