Benincasa hispida

Benincasa hispida, the wax gourd, also called ash gourd, white gourd, winter gourd, winter melon, tallow gourd, ash pumpkin, dongah or Chinese preserving melon, is a species of vine. The wax gourd is native to South and Southeast Asia. It is grown, especially in Asia, for its very large fruit, eaten as a vegetable when mature. One variety of the plant, called chi qua (Benincasa hispida var. chieh-qua), is commonly used in Asian cuisine....read more on Wikipedia.