(Euphorbiaceae) Mallotus barbatus Muell. Arg.

Local name(s): ຕອງ ເຖົ້າ ຂົນ (tohng tao kohn)

Medicinal use(s): for liver disease

Part(s) used: stem

Field Characters: Treelet 2 m tall, hairy, leaves cordate in shape, petiole peltate.

Locality: Khammouane Province, Nyomalat District, at the eastern flank of the Nakai Nan Theum National Park, Pou Ark Mountain. 

Habitat: Secondary forest along the road.

Altitude: 204 m asl. 

Collector(s): D.D. Soejarto, M. Xayvue, M. Vantanouvong

Collection number(s): DDS 15498

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Local name(s): ຕອງເທົາຂົນ (Tong thao khon)

Medicinal use(s): treat liver disease

Part(s) used: stem

Field Characters: Tree 5-10 m high, plant hairy. Leaves simple, flowers unisexual. 

Locality: Khammuan Province; Nyommalath District; Thongkong Village, roadside of Route to Khammouane Medicinal Biodiversity Preserve; at the southern reaches of Nakai Nam Theum National Park  

Habitat: Tropical rainforest on flat level lands. 

Altitude: 150 m asl. 

Collector(s): O. Souliya, K. Phoulivong, D. Makiem and S. Pimmavong

Collection number(s): Onevilay_YML_010

Collection Date: July 21, 2023

Synonyms, images, taxonomic description: 

Medicinal properties:

Giang PM, Trang VM,  Son PT. Phytochemical studies on Mallotus barbatus . Chem Nat Compd 2013, 49, 129–130. https://doi.org/10.1007/s10600-013-0530-3 

Nguyen Hoang Anh, SeonJu Park, Do Thi Trang et al. Genus Mallotus (Euphorbiaceae): A review on traditional medicinal use, phytochemistry, and biological activities. Vietnam Journal of Science and Technology 2022, 60 (2) 141-174. doi:10.15625/2525-2518/16634  https://lumina.sh/c5bbe32b-4fb7-476a-81aa-fe269f67f283/file/1ff84bbf-3e69-526f-beae-c73aa88065c0 

Ren C, Hou P, Li J, Huang Y et al. Megastigmane glycoside and phenol glycosides from the bark of Mallotus barbatus. Nat Prod Res. 2023, Oct 22:1-8. doi: 10.1080/14786419.2023.2272284. Epub ahead of print. PMID: 37867299. https://pubmed.ncbi.nlm.nih.gov/37867299/