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Trema orientale

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Trema orientale
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Cannabaceae
Genus: Trema
Species:
T. orientale
Binomial name
Trema orientale
Synonyms[2]
List
    • Celtis commersonii Brongn.
    • Celtis glomerata Hochst.
    • Celtis guineensis Schumach. & Thonn.
    • Celtis laeta Salisb.
    • Celtis madagascariensis Bojer
    • Celtis orientalis L.
    • Celtis rigida Blume
    • Sponia affinis Planch.
    • Sponia africana Planch.
    • Sponia andaresa Comm. ex Lam.
    • Sponia argentea Planch.
    • Sponia bracteolata Hochst.
    • Sponia commersonii Decne. ex Planch.
    • Sponia glomerata Hochst.
    • Sponia guineensis (Schumach. & Thonn.) Planch.
    • Sponia hochstetteri Planch.
    • Sponia lucida Hassk.
    • Sponia nitens Hook.f. ex Planch.
    • Sponia orientalis (L.) Decne. ex Planch.
    • Sponia rigida (Blume) Decne. ex Planch.
    • Sponia scaberrima Miq.
    • Sponia strigosa Planch.
    • Sponia wightii Planch.
    • Trema affine (Planch.) Blume
    • Trema africanum (Planch.) Blume
    • Trema argenteum (Planch.) Blume
    • Trema bracteolatum (Hochst.) Blume
    • Trema burmanni Blume
    • Trema commersonii (Decne. ex Planch.) Blume
    • Trema glomeratum (Hochst.) Blume
    • Trema grevei Baill.
    • Trema griseum Baker
    • Trema guineense (Schumach. & Thonn.) Ficalho
    • Trema hochstetteri (Planch.) Engl.
    • Trema nitens (Hook.f. ex Planch.) Blume
    • Trema rigidum (Blume) Blume
    • Trema scaberrimum (Miq.) Blume
    • Trema sieberi Blume

Trema orientale (sometimes Trema orientalis) is a species of flowering tree in the hemp family, Cannabaceae.[2][4][5][6] It is known by many common names, including charcoal-tree,[6] Indian charcoal-tree,[6] pigeon wood,[7] Oriental trema,[8] and in Hawaii, where it has become naturalized, gunpowder tree,[9] or nalita.[10] It has a near universal distribution in tropical and warm temperate parts of the Old World, with a range extending from South Africa, through the Middle East, the Indian subcontinent and southern China to Southeast Asia and Australia.

Distribution

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Trema orientale is native to tropical and southern Africa (including Madagascar), Asia (the Arabian Peninsula, China, eastern Asia, tropical Asia) and Australia.[6]

Uses

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The wood is relatively soft, and burns easily and quickly when dry. The wood is suitable for paper and pulp production,[11][12] producing paper with good tensile strength and folding endurance.[11] The bark can be used for making string or rope, and used as waterproofing fishing-lines.[7][13] In India and Tanzania, the wood is used to make charcoal and is a good fire starter.[13]

Medicinal use

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The tree has various uses as an herbal medicine in a wide range of cultures.[7] The leaves and the bark are used to treat coughs, sore throats, asthma, bronchitis, gonorrhea, yellow fever, toothache, and as an antidote to general poisoning.[11][14] A bark infusion is reportedly drunk to control dysentery and a leaf decoction is used to deworm dogs.[11] In recent pharmacological studies, an aqueous extract from the bark has been shown to reduce blood sugar levels in an experimental animal model of diabetes mellitus, and may be useful for treating this disease.[15] Extracts from leaves of related species (Trema guineense and Trema micrantha) showed anti-inflammatory, anti-arthritic and analgesic activity in rodents,[16] suggesting that T. orientale could produce similar results.

Phytochemicals

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Trema orientalis has been reported to contain cannabinoids such as tetrahydrocannabinol (30mg/kg-90mg/kg avg), cannabinol (130mg/kg-357mg/kg avg) and cannabidiol (2mg/kg-5mg/kg avg). Identification was performed by comparing the retention time of HPLC and GC analysis.[17] However these results have not yet been independently replicated, and have been disputed.[18]

Ecology

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This species has a high ecological impact with at least 14 species of butterfly using it as a larval food plant.[7] Several species of birds eat the fruit or feed on the abundant insects which live in these trees. Pigeons and doves are often found in these trees where they eat the fruits or make their nests; giving the origin of the name 'Pigeon Wood'.[7] The leaves, pods and seeds are used as fodder for cattle, buffaloes and goats in the Philippines.[11][14] The leaves are also browsed by game animals and can be used as spinach. This tree is a fast-growing species found in previously disturbed areas and on forest margins. It is a pioneer species that can grow on poor soil and can be used to regenerate forest areas by providing shade and protection to saplings of forest hardwoods. T. orientale is nitrogen fixing and can thereby improve soil fertility for other plant species.[14]

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  • Flowers and leaves
    Flowers and leaves
  • Pollen grains of Trema orientale
    Pollen grains of Trema orientale
  • Ripe fruit and bark
    Ripe fruit and bark
  • Green and ripe (black) fruit
    Green and ripe (black) fruit
  • Branch bent down to show leaves and fruit
    Branch bent down to show leaves and fruit

References

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  1. ^ Barstow, M. (2018). Trema orientalis. The IUCN Red List of Threatened Species 2018: e.T61988133A61988136. https://doi.org/10.2305/IUCN.UK.2018-1.RLTS.T61988133A61988136.en. Downloaded on 30 October 2018.
  2. ^ a b c "Trema orientale (L.) Blume". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 27 September 2021.
  3. ^  Under its treatment of Trema orientalis (from its basionym of Celtis orientalis), this plant name was first published in Museum Botanicum 2: 62. 1852. "Name - Trema orientalis (L.) Blume". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved November 2, 2011.
  4. ^ "Name - !Trema orientalis (L.) Blume synonyms". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved November 2, 2011.
  5. ^  The basionym of T. orientalis, Celtis orientalis was originally described and published in Species Plantarum 2: 1044. 1753. "Name - Celtis orientalis L." Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved November 2, 2011. Type-Protologue: Locality: Habitat in Indiis: Distribution: Sri Lanka
  6. ^ a b c d GRIN (May 29, 2007). "Trema orientalis information from NPGS/GRIN". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Retrieved November 2, 2011. Comment: although treated [at GRIN] as feminine, in accordance with botanical tradition (Vienna ICBN Art. 62.1), the genus is of neuter gender according to NCU-3
  7. ^ a b c d e Malan, Christien; Notten, Alice (April 2005). "Trema orientalis". South African National Biodiversity Institute. Retrieved 2 March 2010.
  8. ^ NRCS. "Trema orientalis". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 14 December 2015.
  9. ^ Little Jr., Elbert L.; Skolmen, Roger G. (1989). Common Forest Trees of Hawaii: Gunpowder-tree (PDF). Agriculture Handbook No. 679. USDA. Retrieved 2010-03-02.
  10. ^ Jahan, M. Sarwar; Sung Phil Mun (April 2007). "Characteristics of Dioxane Lignins Isolated at Different Ages of Nalita Wood (Trema orientalis)". Journal of Wood Chemistry and Technology. 27 (2): 83–98. doi:10.1080/02773810701486865. S2CID 98093199.
  11. ^ a b c d e Orwa, C; A Mutua; Kindt R; Jamnadass R; S Anthony (2009). "Trema orientalis". Agroforestree Database:a tree reference and selection guide, version 4.0. World Agroforestry Centre. Retrieved 2010-03-09. {{cite web}}: External link in |work= (help)
  12. ^ Jahan, M.S. et al. (2007). Evaluation of cooking processes for Trema orientalis pulping Journal of Scientific & Industrial Research, Vol. 66 (2007) 853
  13. ^ a b FAO Forestry Department (1986). Some Medicinal Forest Plants Of Africa And Latin America Forestry - Paper 67. Food And Agriculture Organization Of The United Nations. pp. 223–227. Retrieved 2010-03-02.
  14. ^ a b c Eckman, Karlyn; Hines, Deborah A. (1993). "Trema orientalis" (PDF). Indigenous multipurpose trees of Tanzania: uses and economic benefits for people. FAO Forestry Department. Retrieved 2010-03-02.
  15. ^ Dimo T, Ngueguim FT, Kamtchouing P, Dongo E, Tan PV (2006). "Glucose lowering efficacy of the aqueous stem bark extract of Trema orientalis (Linn) Blume in normal and streptozotocin diabetic rats". Die Pharmazie. 61 (3): 233–6. PMID 16599266.
  16. ^ Barbera, R.; Trovato, A.; Rapisarda, A.; Ragusa, S. (1992). "Analgesic and antiinflammatory activity in acute and chronic conditions of Trema guineense (Schum. et Thonn.) Ficalho and Trema micrantha Blume extracts in rodents". Phytotherapy Research. 6 (3): 146. doi:10.1002/ptr.2650060309. S2CID 83475778.
  17. ^ Napiroon T, Tanruean K, Poolprasert P, Bacher M, Balslev H, Poopath M, Santimaleeworagun W. Cannabinoids from inflorescences fractions of Trema orientalis (L.) Blume (Cannabaceae) against human pathogenic bacteria. PeerJ. 2021 May 13;9:e11446. doi:10.7717/peerj.11446 PMID 34035994
  18. ^ Appendino G, Taglialatela-Scafati O, Muñoz E. Cannabidiol (CBD) From Non-Cannabis Plants: Myth or Reality? Natural Product Communications. 2022;17(5). doi:10.1177/1934578X221098843

Bibliography

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  • Pooley, E. (1993). The Complete Field Guide to Trees of Natal, Zululand and Transkei. ISBN 0-620-17697-0.
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