Flixweed

Descurainia sophia
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Descurainia
Species:	D. sophia
Binomial name
Descurainia sophia (L.) Webb ex Prantl
Synonyms
Sisymbrium sophia L.

Sisymbrium sophia L.

Descurainia sophia is a member of the mustard family. Common names include flixweed, herb-Sophia and tansy mustard. It reproduces by seeds. Its stem is erect, branched, and 4–30 in (10–76 cm) high. It was once given to patients suffering from dysentery and called by ancient herbalists Sophia Chirurgorum, "The Wisdom of Surgeons". It is the type species of the genus Descurainia and of the rejected genus Sophia Adans.

In Iran, the seeds are called khak-e shir (khakshir), and khak-e shir drinks are mostly known as thirst quencher during hot summer days.

In German, it is called the Sophienkraut and associated with Saint Sophia of Rome, who was invoked against late frosts.

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Wikipedia