(Vitaceae) Tetrastigma quadrangulum Gagn. & Craib

Local name(s): ເຄືອເຂົາຮໍແດງ (ເຄືອໝາກໄຂ່ເຕົ່າ)

 (Kheua khao hor deng; Kheua mak khai tao) 

Medicinal use(s): treat red eyes (conjunctivitis)

Part(s) used: water from the vine

Field Characters: Large liana, stem thick, fissured, gray, flowers white in axillary clusters. 

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

Habitat: Forest edge. 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 15082

Collection Date: September 25, 2014

Additional information:  

Synonyms, images, taxonomic description: 

Useful references:

Kochaiphat P, Trias-blas A, Pornpongrungrueng P. A new combination and new records of Tetrastigma (Vitaceae) from Thailand. Phytotaxa 2014,183 (4): 272–278. http://dx.doi.org/10.11646/phytotaxa.183.4.6

Zhang L, Li B, Wang M, et al. Genus Tetrastigma: A review of its folk uses, phytochemistry and pharmacology. Chinese Herbal Medicines 2022, 14(2), 210-233. https://doi.org/10.1016/j.chmed.2022.03.003

Zhu R, Xu X, Ying J, et al.  The Phytochemistry, Pharmacology, and Quality Control of Tetrastigma hemsleyanum Diels & Gilg in China: A Review. Front. Pharmacol. 2020, volume 24,  Sec. Ethnopharmacology. https://doi.org/10.3389/fphar.2020.550497