Artemisia cina

Artemisia cina, commonly known as santonica (zahr el shieh el -khorasani), Levant wormseed, and wormseed, is an Asian species of herbaceous perennial in the daisy family.[2][3] Its dried flowerheads are the source of the vermifugic drug santonin since ancient times.[4] Its common names arise from its known ability to expel worms. The powder is grayish-green in colour with an aromatic odour and a bitter taste. Dysphania ambrosioides is another plant with the common name wormseed, called epazote in Mexican cuisine.[5]The plant is characterised by its spherical pollen grains, which are typical in the Asteraceae a fibrous layer on anthers lignified, elongated, hypodermal sclerids and clusters of calcium oxalate crystals.It is native to China, Pakistan, Russia, Turkestan, Kazakhstan, and Kyrgyzstan.[6]It is referenced in the short story "Funes the Memorious" by Jorge Luis Borges.

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