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Alstonia congensis, is a tree within the Apocynaceae family and one of two African species within the Alstonia genus, the other being the Alstonia boonei De Wild. Both have similar morphological characteristics.
| Alstonia congensis | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Genus: | Alstonia |
| Species: | A. congensis |
| Binomial name | |
| Alstonia congensis Engl. | |
The root and stem bark contains the alkaloids echitamine and echitamidine.[1]
Description
The species can grow as high as 30 meters tall, trunk is cylindrical; bark, smooth or scaly, brown - yellow. Leaves, between 4 and 8 together in verticillate arrangement, petiole, 0-0.5 cm long; leaf-blade, obovate to narrowly obovate in outline, glaucous or coriaceous upper surface, duller beneath, acuminate at apex and decurrent into the base.[2] Flower: sepals, glabrous or sparsely pubescent, pale green.[3]
Distribution
Occurs in West Tropical Africa and parts of Central Africa, particularly the Democratic Republic of Congo,[3] grows in high forest and freshwater swamp forest.[4]
Uses
Leaf and root bark extracts used in the topical treatment of rheumatic pains,[3] root extracts used in decoction to treat mild malaria fever.[5]
References
- Caron, Catherine; Graftieaux, Alain; Massiot, Georges; Le Men-Olivier, Louisette; Delaude, Clement (1989). "Alkaloids from Alstonia congensis". Phytochemistry. 28 (4): 1241–1244. doi:10.1016/0031-9422(89)80218-3.
- "de Jong, B.H.J. 1979: A revision of the African species of Alstonia R.Br. (Apocynaceae). – Mededelingen Landbouwhogeschool Wageningen 79-13: 1-16 | Flora of Central Africa". floreafriquecentrale.org. Retrieved 2021-07-20.
- Monachino, Joseph (1949). "A Revision of the Genus Alstonia (Apocynaceae)". Pacific Science; A Quarterly Devoted to the Biological and Physical Sciences of the Pacific Region. hdl:10125/8927. ISSN 0030-8870.
- Jayeola, A. A. (2008-04-18). "Surface sculpturing of Alstonia booneii DE WILD. and A. congensis ENGL. (Apocynaceae) and its importance on their taxonomy". Feddes Repertorium. 109 (5–6): 429–433. doi:10.1002/fedr.19981090514.
- Cimanga, R. Kanyanga; Nsaka, S. Lumpu; Tshodi, M. Ehata; Mbamu, B. Maya; Kikweta, C. Munduku; Makila, F. Bool-Miting; Cos, Paul; Maes, Louis; Vlietinck, Arnold J.; Exarchou, Vassiliki; Tuenter, Emmy (2019). "In vitro and in vivo antiplasmodial activity of extracts and isolated constituents of Alstonia congensis root bark". Journal of Ethnopharmacology. 242: 111736. doi:10.1016/j.jep.2019.02.019. hdl:10067/1617780151162165141. PMID 30763695. S2CID 73436555.
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