(Apocynaceae) Cryptolepis dubia M.R.Almeida

Local name(s): ເຄືອ ເອັນ ອ່ອນ (kheua en onh)

Medicinal use(s): Used for treatment of nervous breakdown.

Part used: vine stem

Field characters: Vine, flowers greenish yellow to pale yellow, latex milky white.

Locality: Xieng Khoang Province, Kham District, Kham Medicinal Biodiversity Preserve, 15 km from Kham town.

Habitat: Broadleaved evergreen submontane forest. Edge of forest along road. Rare occurrence.

Altitude: 1130 m asl

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

Collection number: DDS 14971

Collection date: May 16, 2014

Additional information:

Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2313845.

Synonyms, images, taxonomic description:

Plants of the World onlineFlora of China Vol. 16 Page 193 (under syn. Cryptolepis buchananii )

Useful references:

Henkin, JM et al. J Med Plant Res. 2017 Oct; 11(40): 621–634. Sriset, Y et al. Isan J. Pharm. Sci. 13(1) (2017).