(Euphorbiaceae) Trigonostemon sp.

Local name(s): ສ້ານ ນໍ້າ ຍອດ ແດງ (san nam yod deng) 

Medicinal use(s): blood tonic

Part(s) used: stem wood (without bark)

Field Characters: Small tree, branches liana-like, stem 8 cm in diameter, fruits profuse, green, turning black, disposed on a spreading, axillary, terminal panicles

Locality: Oudomxay, Muang Xay District, Donxay Village, Medicinal Biodiversity Preserve, about 3 km south of city. GPS reading: 20o 40.032’ N; 102o 00.133’ E.

Habitat: Broadleaved, mixed evergreen lowland tropical rainforest on a mountain slope. 

Altitude: 730 m asl. 

Collector(s): D.D. Soejarto, K. Sydara, M. Xayvue

 Collection number(s): DDS 15073

Collection Date: September 25, 2014

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2314141.

Synonyms, images, taxonomic description: 


Plants of the World onlineGBIF | Global Biodiversity Information FacilityFlora of China  Vol. 11 Pgaes 168, 272 

Useful references:


Shin JY, Kang JS, Byun HW, Ahn EK. Regulatory effects and molecular mechanism of Trigonostemon reidioides on lipopolysaccharide‑induced inflammatory responses in RAW264.7 cells. Mol Med Rep 2017, 16(4):5137-5142.  DOI: 10.3892/mmr.2017.7297

Song K, Li M, Yang Y, et al. Trigonostemon species in south China: Insights on its chemical constituents towards pharmacological applications. J Ethnopharmacol 2021,  5;281:114504. https://doi.org/10.1016/j.jep.2021.114504 

Xu J-B, Jian-Min Yue J-M. Recent studies on the chemical constituents of Trigonostemon plants. Org Chem Front 2014, 1, 1225-1252.