Cucurbitaceae Citrullus lanatus var. citrioides (Bailey) Mansf.
Source: Magness et al. 1971
Citron is a plant of the same species as watermelon, but the fruit flesh is white, hard and inedible in the raw state. The plant is prostrate growing. The fruits are round to oval, up to 6 inches long, with smooth surface, resembling small watermelons. The flesh is used for making conserves and pickles. Citrons are sometimes used as feed for hogs.
Production in U.S.: No data. Very minor.
Use: Conserves, pickling, stock feed.
Part of plant consumed: White flesh