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Family Apocynacea
Lanete
Wrightia pubescensR. Br.
Dao diao bi

Scientific names Local names
Wrightia pubescens R. Br. Anantong
Wrightia pubescens R. Br. subsp. laniti Blanco Lanete (Tag.)
Wrightia laniti (Blanco) Merr. Laniti (Tag.)
Wrightia kwangtungensis Tsiang. Manlagosi
Wrightia annamensis Eberhardt & Dubard  
Wrightia pubescens R.Br. is an accepted name The Plant List
Laniti is a local common name shared by Wrightia pubescens (lanete) and Kickxia blancoi Rolfe (laniting-gubat)

Other vernacular names
CHINESE: Dao diao bi, Dao bing, Ji mu, Jiu nong mu, Ru jiang shu, Zhi tong mu, Xi gu mu, Ku yang.
INDONESIAN: Mentaos, Bintaos, Benteli lalaki.
LAOS: Mouk.
MALAYSIA: Pulai tanah, Jeliti, Mentoh, Metih-metah.
THAI: Mok, Moke, Mok man, Mukkuea.
VIETNAMESE: Th[uwf]ng m[uws]c l[oo]ng.

Botany
Lanete is a tree growing to a height of 35 meters. Trunk is 60 centimeters in diameter. Bark is yellowish brown. Young branchlets are yellowish, pubescent, becoming glabrous with age, densely lenticellate. Petiole is about 1 centimeter. Leaf blade is narrowly oblong, ovate, or narrowly ovate, 5 to 10 by 3 to 6 centimeters, papery, puberulent to glabrous adaxially, with 8 to 15 pairs of veins. Cymes are about 5 centimeters, pubescent. Sepals are ovate, 2 to 5 millimeters. Corolla is white or pinkish white, funneiform; lobes are oblong, 1 to 2 centimeters; corona is fringed Stamens are pubescent, inserted at the mouth of the corolla; anthers are exserted. Follicles are connate, sublinear, 15 to 30 by 1 to 2 centimeters. Seeds are narrowly fusiform.

Distribution
- In deciduous lowland thickets and forests.
- Also occurs in China, India, and Australia.

Constituents
- Leaves yielded ursolic acid (1), oleanolic acid (2), squalene (3), ß-sitosterol (4) and chlorophyll a (5) from the leaves; and 1, 2, and amyrin acetate (6) from the twigs. (see studies below) (3)

Properties
- Studies have suggested anti-inflammatory and anti-nociceptive properties.

Parts used
Roots, bark, latex.

Uses

Folkloric
- Extracts from roots and barks used to treat scrofula and rheumatic arthralgia. Latex used for severe dysentery. (3)
- An ingredient in Chinese medicines used for hiccups, arthritis, upper respiratory infections in children. (3)
- Used by Malay people for toothache. (4)
Others
- Wood: Used for making furniture, poles, and musical instruments. (2)
- Paper: Bark fibers used for making paper and artificial cotton. (2)


Studies
Chemical Constituents:
Dichlormethane extracts yielded ursolic acid (1), oleanolic acid (2), squalene (3), ß-sitosterol (4) and chlorophyll a (5) from the leaves; and 1, 2, and amyrin acetate (6) from the twigs. (3)
Anti-Inflammatory / Prostaglandin E2 Inhibition / Latex: Study of substances derived from Wrightia pubescens latex showed inhibitory activity on prostaglandin E2 (PGE2) production and cycloxygenase 2 (COX-2) expression in LPS-activated RAW 264.7 mouse macrophages which may play a role in the reduction of pain and inflammation. (5)

Availability
Wild-crafted.

February 2015

IMAGE SOURCE: / Photo - Flower and leaves / Wrightia pubescens Brown - APOCYNACEAE / © BIOTIK / Non-commercial Use ' Click on photo to go to source image / Biotik
IMAGE SOURCE: / illustration / File:Wrightia pubescens Blanco1.40-cropped.jpg / Plate from book / Flora de Filipinas / Francisco Manuel Blanco (OSA) / Public Domain / Wikipedia

Additional Sources and Suggested Readings
(1)
Sorting Wrightia names / /Maintained by: Michel H. Porcher / MULTILINGUAL MULTISCRIPT PLANT NAME DATABASE / Copyright © 1995 - 2020 / A Work in Progress. School of Agriculture and Food Systems. Faculty of Land & Food Resources. The University of Melbourne. Australia.
(2)
Botanical description / Chinese Plant Names / Flora of China / www.eFloras
(3)
Chemical constituents of Wrightia pubescens / Consolacion Y. Ragasa, Vincent Antonio S. Ng, Mariquit M. De Los Reyes, Emelina H. Mandia and Chien-Chang Shen / Der Pharmacia Lettre, 2014, 6 (6):14-19
(4)
Herbal Remedies in Malay medicine / The Malay Medicine
(5)
Inhibition of prostaglandin E2 by substances derived from Wrightia pubescens latex in LPS-activated RAW 264.7 mouse macrophages / Jutharat Jittimanee, Pawana Panomket, Surasak Wanrum / Journal of Medical Technology and Physical Therapy, Vol 25, No 1, January-April 2013
(6)
CRC World Dictionary of Medicinal and Poisonous Plants: Common names
/ By Umberto Quattrocchi / Google Books
(7)
Chinese names / Catalogue of LifeL 2013 Annual Checklist

It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

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