(Acanthaceae) Phlogacanthus curviflorus (Nees) Nees

Local name(s): ຮົ່ມ ຊ້າງ (hohm xang)

Medicinal use(s): Treat malaria, fever 

Part(s) used: Root

Field characters: Large shrub, inflorescence erect, terminal, pink-purple when young. Fruit a capsule, dry, in a racemous setting.

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

Habitat: 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 15081

Collection date: September 25, 2014

Additional information:  

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2314154.
Synonyms, images, taxonomic description: Plants of the World onlineFlora of China Vol. 19 Page 475GBIF | Global Biodiversity Information Facility

Medicinal properties:

Devi M, Bordoloi S, Pathak K, et al. (2024). Phlogacanthus curviflorus (WALL)NEES: An insight into its expository traditional uses and extensive phytochemistry. In book: Current Trends and Advances in Life Science Research (pp.101-114). Publisher: Pandu College Publication Cell, Pandu College, Guwahati, India. https://www.researchgate.net/publication/380880996_Phlogacanthus_curviflorus_WALLNEES_An_insight_into_its_expository_traditional_uses_and_extensive_phytochemistry 
Li J, Meng X, YIin C, et al. Antimalarial and neuroprotective ent-abietane diterpenoids from the aerial parts of Phlogacanthus curviflorus. Chinese Journal of Natural Medicines 2023,  volume 21, issue 8, pages 619-630. https://doi.org/10.1016/S1875-5364(23)60464-9 .