8 drugs that exist in nature

Aspirin comes from willow bark. Heroin is made from poppy buds. And more!

A police official squeezes a poppy pod, releasing the milky substance that when dried becomes raw opium.
(Image credit: ADREES LATIF/Reuters/Corbis)

Most drugs today, legal and otherwise, are synthesized in a laboratory. But most medical and recreational drugs originally began in the wild, growing naturally in forests, fields, and deserts. Some can still be found there. Here are some of the country's better known drugs, in their natural, pre-processed form.

1. Opium poppy (heroin, morphine, codeine)

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Therese O'Neill

Therese O'Neill lives in Oregon and writes for The Atlantic, Mental Floss, Jezebel, and more. She is the author of New York Times bestseller Unmentionable: The Victorian Ladies Guide to Sex, Marriage and Manners. Meet her at writerthereseoneill.com.