Herbarium: Medicinal Plants as Information

History of Artemisia douglasiana and its Therapeutic Usage

The plant from the UCLA herbarium and botanical garden is called Artemisia douglasiana. Artemisia douglasiana is classified under the family Asteraceae and under the taxon: Artemisia douglasiana Bess. However, the plant from the historical Materia Medica is called Artemisia campestris (mugwort) and belongs to the same genus as the UCLA herbarium and botanical garden specimen: Artemisia douglasiana (California mugwort). Artemisia campestris particularly illustrates the flowering stem, leaves, roots and floral segments of the mugwort. The herbarium specimen displays Artemisia douglasiana as a mature plant in full flower while the botanical garden specimen does not display any seedlings or flowers. The botanical garden leaves from Artemisia douglasiana differ in branching from the leaves of Artemisia campestris as they appear to be noticeably thicker. With regards to the UCLA Herbarium, the plant was collected from Santa Ynez Canyon at Sunset Blvd at Santa Monica Mountains on September 16,1967 by T. A. Geissman. The specimen was treated under Lauryl pentachlorophenate, a chemical preservant. The historical plant, on the other hand, is called Artemisia campestris and was engraved by the engraver James Sowerby during the latter half of the 18th century, particularly on August 1, 1796 in London. The image is a colored engraving that is meant to conveniently display the stem, the flowering form of the plant, as well as the mature version with the bottom depicting a straight line array of the elements of the flowering segments. The significance of this image can be attributed to the artist James Sowerby, who was a naturalist that attempted to be an heir to Carl Linnaeus’s taxonomic throne. The plants’ contextual uses can be further traced back to their medicinal properties.


















Historically, Artemisia campestris is considered a medicinal halophytic shrub and is commonly spotted in coastal sand dunes, especially throughout the sand dunes of the European Atlantic coast, as well as in the Santa heights area in the Americas. Before settlers arrived in the Americas, Artemisia douglasiana (California mugwort) was used by Native Americans, namely the Chumash and Cahuilla. The Chumash and Cahuilla found use of the plant primarily for the treatment of nervous and spasmodic (episodic) affections. The majority of the medicinal value of the plant tends to revolve around the leaves of the plant.




















Nervous and Spasmodic affections, such as rashes caused by poison oak and headaches, were treated through the use of water in which the leaves of Artemisia douglasiana have been simmering. Additionally, this tea was used by Native Americans to provide benefits in the treatment of female period pains, rheumatism and gout. The teas produced with the leaves and or the stems of Artemisia douglasiana and other similar plants have also been known to be used by the Europeans as an anti-diabetic, anti-inflammatory and antipyretic (fever reducer). The annotations written on the images of Artemisia douglasiana reflect the utility of the various areas of the plant in addition to describing the plant’s history of medical uses.


















 

WORKS CITED

 “Artemisia Campestris.” 2021. Wikipedia. Wikimedia Foundation. May 13. https://en.wikipedia.org/wiki/Artemisia_campestris#:~: text=Artemisia%20campestris%20is%20a%20branching ,rocky%20slopes%2C%20and%20waste%20areas.
 Ekiert, Halina, et al. “Significance of Artemisia Vulgaris L. (Common Mugwort) in the History of Medicine and Its Possible Contemporary Applications Substantiated by Phytochemical and Pharmacological Studies.” Molecules, vol. 25, no. 19, 2020, p. 4415., https://doi.org/10.3390/molecules25194415.
“James Sowerby.” 2021. Wikipedia. Wikimedia Foundation. April 17. https://en.wikipedia.org/wiki/James_Sowerby.
 “James Sowerby.” 2022. The Linnean Society. Accessed January 31. https://www.linnean.org/learning/biomedia/art-in-science/james-sowerby.
 Pereira, Catarina et. al. 2018. “Health Promoting Potential of Herbal Teas and Tinctures from Artemisia Campestris Subsp. Maritima: From Traditional Remedies to Prospective Products.” Nature News. Nature Publishing Group. March 16. https://www.nature.com/articles/s41598-018-23038-6#:~:text=The%20species%2C%20A.,anti%2Dinflammatory%20and%20antipyretic16.
 Sowerby, James. (engraver). 1796. “Mugwort (Artemisia campestris).” Wellcome Collection,24960i.
 T. A. Geissman. 2022. CCH2 Portal detailed Collection Record Information. Accessed March 8. https://www.cch2.org/portal/collections/individual/index.php?occid=5210983&clid=0.

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