Biology:Zanthoxylum dipetalum
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Short description: Species of tree
| Zanthoxylum dipetalum | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Zanthoxylum |
| Species: | Z. dipetalum
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| Binomial name | |
| Zanthoxylum dipetalum H.Mann
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| Synonyms[3] | |
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Zanthoxylum dipetalum is a species of rare tree in the family Rutaceae and in the same genus as Sichuan pepper.[3][4] It is known by the Hawaiian names kāwa'u and aʻe. It is endemic to the Hawaiian archipelago, where it grows in forests on four of the islands.[1][2]
There are two varieties.[1][2]
- Z. d. var. dipetalum is present on Kauaʻi, in the mountains of Oʻahu, on Hawaiʻi in Hawaiʻi Volcanoes National Park, and possibly on Molokaʻi.
- Z. d. var. tomentosum is known from fewer than 30 individuals on Hualālai volcano on Hawaiʻi.[5][6][7] This variety is a federally listed endangered species of the United States.[2]
The roots of Z. dipetalum have been found to contain several chemical compounds, including canthin-6-one, chelerythrine, nitidine, tembetarine, avicennol, xanthoxyletin, lupeol, hesperidin, sitosterol, and magnoflorine.[8]
References
- ↑ 1.0 1.1 1.2 Portner, T.; Keir, M.; Gon, S.M.; Sporck-Koehler, M.; Chau, M.; Caraway, V.L.; Kwon, J. (2015). "Zanthoxylum dipetalum". IUCN Red List of Threatened Species 2015. doi:10.2305/IUCN.UK.2015-4.RLTS.T62986A78764685.en. https://www.iucnredlist.org/species/62986/78764685. Retrieved 18 November 2021.
- ↑ 2.0 2.1 2.2 2.3 "Zanthoxylum dipetalum Kawa`u". NatureServe. 2025. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.130059/Zanthoxylum_dipetalum.
- ↑ 3.0 3.1 "Zanthoxylum dipetalum H.Mann". Royal Botanic Gardens, Kew. http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:775695-1.
- ↑ "Zanthoxylum dipetalum H.Mann". Species 2000: Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/7GCVB.
- ↑ Keir, M.; Portner, T.; Weisenberger, L.; Caraway, V.L.; Kwon, J. (2015). "Zanthoxylum dipetalum var. tomentosum". IUCN Red List of Threatened Species 2015. doi:10.2305/IUCN.UK.2015-4.RLTS.T30781A78767557.en. https://www.iucnredlist.org/species/30781/78767557. Retrieved 18 November 2021.
- ↑ "Zanthoxylum dipetalum var. tomentosum Kawa`u". NatureServe. 2025. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.133606/Zanthoxylum_dipetalum_var_tomentosum.
- ↑ Zanthoxylum dipetalum. Center for Plant Conservation.
- ↑ Fish, Francis; Gray, Alexander I.; Waterman, Peter G. (1975). "Alkaloids, coumarins, triterpenes and a flavanone from the root of Zanthoxylum dipetalum". Phytochemistry 14 (9): 2073–2076. doi:10.1016/0031-9422(75)83129-3. http://www.sciencedirect.com/science/article/pii/0031942275831293.
External links
Wikidata ☰ Q8066280 entry
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