(Lamiaceae) Congea tomentosa Roxb.

Local name(s): ດອກອອນ (dok one)

Medicinal use(s): To stop excessive menstrual bleeding.

Part(s) used: stem

Field Characters: Liana to 5 m above ground, flowers profuse, white, in a group of 3, surrounded by 3 bracts, bracts light pinkish above, gray-green below.

Locality: Luang Prabang province, Park Ou district, Medicinal Biodiversity Preserve above Somsanouk village.

GPS reading: 20o 04.073’ N; 102o 16.553’ E.

Habitat: Subtropical monsoon forest on steep slope, ascending to the base of limestone mountain that rises precipitously to a peak of ca. 1000 m asl. Greater part of vegetation cover was leafless at the time of this fieldwork.

Altitude: 415 m asl. 

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

Collection number(s): DDS 15451

Collection Date: February 11, 2020

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2329966
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Local name(s): ເຄືອ ງວງ ຊຸ່ມ (kheua ngouang soum)

Medicinal use(s): dengue fever

Part(s) used: root, stem

Field Characters: Vine / liana. Trunk approx 3 cm diam. Leaves tomentose, margin smooth. Inflorescence paniculate. Flowers white, glaucous.

Locality: Sekong Province, Thateng District, Kouk Poung Village, Community medicinal plant garden.

Habitat: Community medicinal plant garden, partial sun.

Altitude: 730 m asl. 

Collector(s): B. Elkington, M. Xayvue, S. Setthavanxay

Collection number(s): BGE 291

Collection Date: November 20, 2019

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2313677; 2330383.
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Local name(s): (kheua ka deng, kheua meng ka beua)

Medicinal use(s): Used for asthma.

Part(s) used: root

Field Characters: Liana, inflorescences whitish, profusely flowered, showy from a distance. Common species throughout the preserve, especially on the canopy area.

Locality: Savannakhet Province, Kaysone district, Medicinal Biodiversity Preserve, at 19 km from city center on road Kaysone-Seno.

Habitat: Broadleaved evergreen, lowland tropical rain forest in regeneration from some degree of past conversion.

Altitude: 158 m asl 

Collector(s): D.D. Soejarto, K. Sydara, O. Souliya 

Collection number(s):  DDS 14902

Collection Date: December 17, 2013

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2313677.

Synonyms, images, taxonomic description: 

Plants of the World onlineFlora of China Vol. 17 Page 49GBIF | Global Biodiversity Information Facility

Useful references:


Ashrafuzzaman M, Khadija Khatun Keya KK, Golam Sarwar AKM. Species Diversity of the genus Clerodendrum L. (Lamiaceae) in Bangladesh Agricultural University Campus and their use in traditional medicines. East Himalayan Society for Spermatophyte Taxonomy 2024, 18(1): 01 - 12.. DOI:10.26679/Pleione.18.1.2024.001-012 


Faruque MO, Uddin SB, Barlow JW, Hu S, Dong S, Cai Q, Li X, Hu X. Quantitative Ethnobotany of Medicinal Plants Used by Indigenous Communities in the Bandarban District of Bangladesh. Front Pharmacol. 2018 Feb 6;9:40. doi: 10.3389/fphar.2018.00040.
Faruque MO, Ankhi UR, Kamaruzzaman M, et al. Chemical composition and antimicrobial activity of Congea tomentosa, an ethnomedicinal plant from Bangladesh. Industrial Crops and Products 2019, volume 141, 111745. https://doi.org/10.1016/j.indcrop.2019.111745.