Apples of Sodom

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a fruit described by ancient writers as externally of fair appearance but dissolving into smoke and ashes when plucked; Dead Sea apples. The name is often given to the fruit of Solanum Sodomæum, a prickly shrub with fruit not unlike a small yellow tomato.

See also: Apple

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
Had the apples of Sodom turned to ashes in my mouth, I could not have felt a more startling revulsion.
Constance, the constant wife, was constantly humiliated, her trust abused; but it is Mr McKenna's contention that she knew full well about her husband's furtive garnerings of the 'Apples of Sodom' and had forgiven him for his solipsistic sunderings of the vinculum matrimonii.