Roman women were advised to plant Monk's Pepper in undies to ward off lust

An expert has compiled some of the most hilarious uses of certain plants in the medieval era.

The most bizarre is the usage of the leaves of the Mediterranean plant Monk's Pepper, which was recommended by a roman philosopher, Pliny the Elder, to be placed in women's undies to reduce their lustful feelings.

It was later identified the plant as an aphrodisiac, since the birthrate remained high.

The intriguing fact has been revealed in the '100 Plants That Almost Changed The World' that was penned by Gardeners' World expert Chris Beardshaw, the Sun reported.

In another fact, the ladies were told to avoid Grapefruit in the 1700s, as it was believed to be the "forbidden fruit" of The Garden of Eden mentioned in 'The Bible'.