(Rubiaceae) Lasianthus attenuatus Jack 

Local name(s): ດູ່ດິນ (ຄັນແຫ້ວນົກຄໍ່) (Dou din, Khanh heo nok khor)

Medicinal use(s): treat dysentery

Part(s) used: root

Field Characters: Shrub, plant hairy, fruits deep blue.

Locality: Oudomxay, Muang Xay District, Donxay Village, Medicinal Biodiversity Preserve, about 3 km south of the city.

GPS reading: At the vicinity of 20o 40.0181’ N; 102o 00.155’ E.

Habitat: Forested slope in a broadleaved, mixed evergreen lowland tropical rainforest on a mountain slope.

Altitude: 800-900 m asl. 

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

Collection number(s): DDS 15098

Collection Date: September 26, 2014

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Local name(s): (Khan heo nok khor me)

Medicinal use(s): as a tonic

Part(s) used: root

Field Characters: Shrub, hairy, fruits intensely bright blue.

Locality: Oudomxay, Muang Xay District, Donxay Village, Medicinal Biodiversity Preserve, about 3 km south of the city. GPS reading: At the vicinity of 20o 39.858’ N; 102o 00.033’ E.

Habitat: Forest on a mountain slope in a broadleaved, mixed evergreen lowland tropical rainforest.

Altitude: 740-850 m asl. 

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

Collection number(s): DDS 15127

Collection Date: September 27, 2014

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2314137.

Synonyms, images, taxonomic description: 


Plants of the World onlineFlora of China Vol. 19 Pages 187, 188GBIF | Global Biodiversity Information Facility

Useful references:


Dang S, Naiki A. A revision of the genus Lasianthus Jack (Rubiaceae) from Vietnam.  Phytotaxa 2022,  volume 581, issue 1, pages 1-150. https://doi.org/10.11646/phytotaxa.581.1.1

Dutta K, Choudhury, Duttachoudhury M, Das Talukdar A. (2010). Chemical constituents and biological activities of the genus Lasianthus Jack: A Review. Assam University Journal of Science & Technology: Biological and Environmental Sciences 2010, 6:129-138. https://www.researchgate.net/publication/228368771_Chemical_Constituents_and_Biological_Activities_of_the_Genus_Lasianthus_Jack_A_Review

Napiroon T, Duangjai S, Vajrodaya S, et al. (2021) Phytochemistry and DNA˗based authentication of medicinal Lasianthus stipularis Blume (Rubiaceae) species against human pathogenic bacteria. The Thai Journal of Pharmaceutical Sciences 2021, vol. 45: Issue 4, Article 10. DOI: https://doi.org/10.56808/3027-7922.2505. Available at: https://digital.car.chula.ac.th/tjps/vol45/iss4/10