Japanese chestnut + Wax gourd

Japanese Chestnut (Castanea crenata) is a species of chestnut originally native to Japan and South Korea. It is a small to medium-sized deciduous tree growing to 10-15 m tall. The leaves are similar to those of the Sweet Chestnut, though usually a little smaller, 8-19 cm long and 3-5 cm broad. The flowers of both sexes are borne in 7-20 cm long, upright catkins, the male flowers in the upper part and female flowers in the lower part. They appear in summer, and by autumn, the female flowers develop into spiny cupules containing 3-7 brownish nuts that are shed during October.

The winter melon, also called white gourd, winter gourd, tallow gourd, Chinese preserving melon, or ash gourd, is a vine grown for its very large fruit, eaten as a vegetable when mature. It is the only member of the genus Benincasa. The fruit is fuzzy when young. The immature melon has thick white flesh that is sweet when eaten. By maturity, the fruit loses its hairs and develops a waxy coating, giving rise to the name wax gourd, and providing a long shelf life. The melon may grow as large as 80 cm in length. Although the fruit is referred to as a "melon," the fully grown crop is not sweet. Originally cultivated in Southeast Asia, the winter melon is now widely grown in East Asia and South Asia as well.