(Fabaceae) Senna siamea (Lam.) H.S.Irwin & Barneby

Local name(s): doo

Medicinal use(s): Used to treat mouth ulcer, gum boil. 

Part(s) used: bark

Field Characters: Small tree up to 6 m tall, with many branches; leaves consist of 6-12 pairs of leaflets; flowers yellow.

Locality: Vientaine, Phon Hong District, Ban Nabone. GPS reading: 15o 24’ N; 105o 89’ E.

Habitat: Secondary forests, clearing.

Altitude: 182 m asl 

Collector(s): A. Libman, O. Souliya, B. Vanavong

Collection number(s): Libman 551

Collection Date: August 7, 2003

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Local name(s): 

Medicinal use(s): 

Part(s) used: 

Field Characters: Tree about 6 m high. Leaves simple, opposite, drooping around the stem. Hexagon-shaped stem. Young budding leaves resemble a fern. Tar-like odor when the leaves are crushed.

Locality: Champasak Province, Ba Chieng District, Nong Sai Village.

Habitat: 

Altitude: 

Collector(s): S. Bouamanivong 0171

Collection number(s): Bouamanivong 171

Collection Date: May 20, 1999

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession nos. 2252481; 2328293.

Synonyms, images, taxonomic description: 

Plants of the World onlineFlora of China Vol. 10 Page 29GBIF | Global Biodiversity Information Facility

Useful references:


Gebrehiwot, H, Ensermu, U, Dekebo, A et al. Exploring the medicinal potential of Senna siamea roots: an integrated study of antibacterial and antioxidant activities, phytochemical analysis, ADMET profiling, and molecular docking insights. Appl Biol Chem 67, 48 (2024). https://doi.org/10.1186/s13765-024-00899-2  

Kamagaté M, Koffi C, Kouamé NM, et al. Ethnobotany, phytochemistry, pharmacology and toxicology profiles of Cassia siamea Lam. The Journal of Phytopharmacology 2014, 3(1): 57-76. https://www.phytopharmajournal.com/Vol3_Issue1_09.pdf  

Nsonde Ntandou GF, Banzouzi JT, Mbatchi B, et al. Analgesic and anti-inflammatory effects of Cassia siamea Lam. stem bark extracts. J Ethnopharmacol 2010, 127(1):108-11. DOI: 10.1016/j.jep.2009.09.040

Ogunniran AO, Dauda OS, Rotimi D, et al. Nutritional, phytochemical, and antimicrobial properties of Senna siamea leaves. Toxicol Rep 2024,13:101793. doi: 10.1016/j.toxrep.2024.101793 

Oladeji OS, Adelowo FE, Oluyori AP, et al. The genus Senna (Fabaceae): A review on its traditional uses, botany, phytochemistry, pharmacology and toxicology. South African Journal of Botany 2021, volume 138, pages 1-32. https://doi.org/10.1016/j.sajb.2020.11.017.