(Fagaceae) Lithocarpus toumorangensis A. Camus

Local name(s): ກໍ່ ຕາ ແລນ (Koh ta len)

Medicinal use(s): treat fever.

Part(s) used: stem bark.

Field characters: Treelet, 6 m tall, fruits green.

Locality: Xieng Khouang Province, Kham District, Kham Medicinal Biodiversity Preserve, 15 km from Kham town. Ba Tha village, northern edge of MBP at meteorological station site.

Habitat: Broadleaved evergreen submontane forest. Low-statured forest cover along slope.

Altitude: 1499 m asl.

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

Collection number(s): DDS 14981

Collection date: May 16, 2014 

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA, under accession no. 2313855.
Project: CCF
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Local name(s): (Kor ta mou)

Medicinal use(s): to treat fever.

Part(s) used: stem bark.

Field characters: Large tree, bark grayish, lenticeled, with slight buttressing, leaves acuminate, alternate, panicles of tiny flowers.

Locality: Bolikhamxay Province, Bolikhan District, Somsavath Medicinal Plant Preserve, off road near Ban Kampay and Ban Somsavath.

Habitat: Roadside. Good quality, seconday tropical rainforest, lowland. 

Altitude: 163 m asl.

Collector(s): J.M. Henkin, O. Souliya

Collection number(s): JMH 088

Collection date: December 16, 2015

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA, under accession no. 2318751.
Project: PO1

Synonyms, images, taxonomic description: 


Plants of the World OnlineGlobal Biodiversit Information FacilityPham Hoang Ho - Cayco Vietnam vol 2, p. 653 #6605JSTORPham Hoang Ho 

Medicinal properties:


Cai, Q. et al. Investigation of the protective effects of phlorizin on diabetic cardiomyopathy in db/db mice by quantitative proteomics. Journal of Diabetes Research 2013; vol. 2013, Article ID 263845, 9 pages

Ehrenkranz, J.R. et al. Phlorizin: a review. Diabetes Metab Res. Rev. 2005; 21(1):31-38.  


Ehrenkranz JRL. Preparation and use of phlorizin compositions. US Patent PCT/US2007/009743. April 20, 2007. International Publication number: WO 2007/124102 A2. 
Meng Y, Ding L, Wang Y, et al. Phytochemical identification of Lithocarpus polystachyus extracts by ultra‐high‐performance liquid chromatography–quadrupole time‐of‐flight–MS and their protein tyrosine phosphatase 1B and α‐glucosidase activities. Biomedical Chromatography 2020, 34(1):e4705.DOI: 10.1002/bmc.4705
Xu J, Zhao Y, Wen J, et al. Composition and toxicity of total water-soluble flavonoids from Lithocarpus litseifolius (Hance) Chun (sweet tea). Food and Agricultural Immunology 2024, 35(1). https://doi.org/10.1080/09540105.2024.2358801 
Zhang Q, Wang L, Zhao Y. An Overview of Lithocarpus polystachyus , with Dihydrochalcones as Natural-Derived Bioactive Compounds. Food Reviews International  2022, 39: 1-14. DOI:10.1080/87559129.2022.2101063