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Artemisia japonica

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Artemisia japonica
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Artemisia
Species:
A. japonica
Binomial name
Artemisia japonica
Synonyms
  • Chrysanthemum japonicum (Thunb.) Thunb.
  • Draconia japonica (Thunb.) Soják
  • Oligosporus japonicus (Thunb.) Poljakov

Artemisia japonica, commonly known as the Japanese wormwood or the Oriental wormwood, is a species of wormwood in the family Asteraceae that is native to Japan, Korea, China, Southeast Asia, and the Indian Subcontinent.[1]

Description

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Artemisia japonica is a perennial herb growing up to 50-130 centimeters. The rootstock is thick, woody, and has a strong smell. The leaves are clustered at the rounded apex. The leaf blade is spatulate and oblong-obovate to broadly spatulate or flabellate. The achenes are brown and obovoid.[2] The many nodding capitulas are ovoid or subglobose. 12-15 florets are yellow. The florets are bisexual, meaning that the species has male and female flowers.[3] The flowering is from August to November.[4] It is most commonly found in the months of August, September, and October. 82.3% of the time it was found it was a preserved sample, and 17.0% of the time it was observed by humans. It is most commonly found in the countries of China, Japan, and Korea.[5]

Artemisia japonica has four varieties:[5]

  • Artemisia japonica var. hainanensis native to China.
  • Artemisia japonica var. hallaisanensis native to Korea.
  • Artemisia japonica var. japonica native to Japan.
  • Artemisia japonica var. manshurica native to Northeastern China.

Uses

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The young leaves are cooked and eaten. The adult leaves are used as a digestive. A decoction of the leaves can give hypertension if eaten too much. The juice from the plant is used to treat vaginitis and skin diseases.[6] The powder from drying the plant is used as an incense.[7] It is used in making antitoxifying and antifebrile drugs.[8]

In a study about artemisinin production in Artemisia species, A. japonica had around average levels compared to other species (0.05% to 0.15% artemisinin). It also had more artemisinin in the flowers than their leaves.[9]

Ecology

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Globodera artemisiae, a parasite, was first found on Artemisia japonica in September 2020. The parasite is commonly found on Artemisia vulgaris.[10] The plant is grazed by sheep and goats in Ladakh and Lahoul, India, but not liked by yaks in the region.[3]

References

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  1. ^ "Artemisia japonica Thunb. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 9 August 2023.
  2. ^ "Artemisia japonica Thunb". worldfloraonline.org. Archived from the original on 10 August 2023. Retrieved 10 August 2023.
  3. ^ a b "Artemisia japonica in Flora of Pakistan @ efloras.org". www.efloras.org. Retrieved 10 August 2023.
  4. ^ "Artemisia japonica Thunberg". flowers.la.coocan.jp. Retrieved 10 August 2023.
  5. ^ a b "Artemisia japonica Thunb". www.gbif.org. Retrieved 10 August 2023.
  6. ^ "Artemisia japonica PFAF Plant Database". pfaf.org. Retrieved 10 August 2023.
  7. ^ "Artemisia japonica - Useful Temperate Plants". temperate.theferns.info. Retrieved 10 August 2023.
  8. ^ "Artemisia japonica - Practical Plants". practicalplants.org. Retrieved 10 August 2023.
  9. ^ Mannan, Abdul; Ahmed, Ibrar; Arshad, Waheed; Asim, Muhammad; Qureshi, Rizwana; Hussain, Izhar; Mirza, Bushra (4 November 2010). "Survey of artemisinin production by diverse Artemisia species in northern Pakistan". Malaria Journal. 9: 310. doi:10.1186/1475-2875-9-310. PMC 2989329. PMID 21047440.
  10. ^ Jiang, Ru; Li, Yunqing; Huang, Liqiang; Peng, Huan; Peng, Deliang (November 2020). "First Report of Globodera artemisiae on Artemisia japonica from Guizhou and Yunnan Provinces, China". Plant Disease. 104 (11): 3083. doi:10.1094/PDIS-04-20-0874-PDN. ISSN 0191-2917.