The "cai gourd" here is the common vegetable - "huzi"

Huzi (hu zi), also known as: sweet gourd, sweet gourd, gourd, Jingjie mallet, Longmi melon, Tian gourd, Chang gourd, and flat cattail; Angiosperm, a species of Cucurbitaceae in the Cucurbitaceae family. It is a variant of the genus Cucurbita and is an annual climbing herb.

The difference from gourd (original variant) is that the ovary is cylindrical; the fruit is well-proportioned and cylindrical in thickness, straight or slightly arched, up to 60-80 cm long, green and white, with white flesh. . ?The fruit is soft and juicy when young and can be used as a vegetable. It is cultivated in most parts of the country and is widely cultivated in the Yangtze River Basin. It is harvested in summer and autumn.

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