Sisymbrium sophia L.
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Descurainia sophia is a member of the mustard family. Common names include flixweed, herb-Sophia and tansy mustard. It reproduces by seeds. It is a dominant weed in dark brown prairie and black prairie soils of southern Alberta. 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.
- "Descurainia sophia (L.) Webb ex Prantl". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew. Retrieved 12 November 2014 – via The Plant List.
- "Descurainia sophia". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 12 November 2014.
- http://www.agric.gov.ab.ca/soil/survey-reports/ab11/ab11_report.pdf Wyatt, Newton, Bowser and Odynsky, 1942. Soil Survey of Blackfoot and Calgary Sheets
- botanical.com - A Modern Herbal | Mustards
- Index Nominum Genericorum
- Ekkart Sauser (1995). "Sophia von Rom". In Bautz, Traugott. Biographisch-Bibliographisches Kirchenlexikon (BBKL) (in German). 10. Herzberg: Bautz. cols. 807–808. ISBN 3-88309-062-X.
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