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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordoo: Rosales

Familia: Cannabaceae
Genus: Chaetachme
Species: C. aristata
Name

Chaetachme Planch., Ann. Sci. Nat., Bot. sér. 3, 10: 340. (1848)

monotypic taxon

References

Planchon, J.E. 1848. Annales des Sciences Naturelles; Botanique Séries 3, 10: 340.
Hassler, M. 2019. Chaetachme. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2019 Aug. 10. Reference page.
International Plant Names Index. 2019. Chaetachme. Published online. Accessed: Aug. 10 2019.

Vernacular names
English: Thorny Elm

Chaetachme is a monotypic genus of flowering plants native to eastern and western Africa, including Madagascar,[2] containing the single species Chaetachme aristata. Its English common name is thorny elm,[3] and it is known as muyuyu in Kikuyu.[4] Traditionally placed in the Elm family, it is more recently placed in the family Cannabaceae, thought to be possibly closely related to Celtis.

Chaetachme aristata is a shrub or small tree growing up to 10 meters tall. It has drooping, angular branches covered with spines up to 3.5 centimeters in length. The lance-shaped leaves are up to 11 centimeters long by 5 centimeters wide, pointed at the tip and smooth or serrated on the edges. The shrub is dioecious and sexually dimorphic, with male and female flower types borne on separate individuals,[2][5] although it may also be monoecious.[6]

This shrub is host to the mirid bug Volumnus chaetacme.[7]

The spiny branches of the shrub are used as fences in African villages.[4][8]
References

"Chaetachme aristata Planch". The Plant List (2013). Version 1.1. Retrieved 5 March 2014.
"JSTOR Global Plants: Search Results". plants.jstor.org. Retrieved 2017-08-01.
Trees & Shrubs of East Africa. Archived 2018-04-08 at the Wayback Machine Safari Patrol
"Glossary". www.fao.org. Retrieved 2017-08-01.
Arusha Region. Archived 2011-08-13 at the Wayback Machine The management and ecology of Tanzanian forests
Yang, Mei-Qing; Van Velzen, Robin; Bakker, Freek T.; Sattarian, Ali; Li, De-Zhu; Yi, Ting-Shuang (2013). "Molecular phylogenetics and character evolution of Cannabaceae". Taxon. 62 (3): 473–485. doi:10.12705/623.9.
Linnavuori, R. (1996). Taxonomic studies of the Miridae (Heteroptera) of Africa and the Middle East. Acta Universitatis Carolinae Biologica 40 321-50.
Bussmann, R. W., et al. (2006). Plant use of the Maasai of Sekenani Valley, Maasai Mara, Kenya. J Ethnobiol Ethnomed 2 22.

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