# Trigonostemon

Trigonostemon is a plant genus of the family Euphorbiaceae and the sole member of its tribe (Trigonostemoneae). It was first described as a genus in 1826. It is native to Southeast Asia, southern China, the Indian Subcontinent, Queensland, and a few islands in the western Pacific.
Species
* Trigonostemon adenocalyx - Vietnam
* Trigonostemon albiflorus - Thailand, Guangxi
* Trigonostemon angustifolius - Philippines
* Trigonostemon apetalogyne - W New Guinea
* Trigonostemon aurantiacus - Andaman & Nicobar Is, Thailand, Malaysia, Sumatra, Java, Myanmar
* Trigonostemon beccarii - Sumatra
* Trigonostemon birmanicus - Myanmar
* Trigonostemon bonianus - Vietnam, Yunnan
* Trigonostemon capillipes - Thailand, Borneo, W Malaysia, Surigao
* Trigonostemon capitellatus - Laos, Vietnam
* Trigonostemon carnosulus - W Malaysia
* Trigonostemon cherrieri - New Caledonia
* Trigonostemon chinensis - Vietnam, S China
* Trigonostemon cochinchinensis - Vietnam
* Trigonostemon croceus - W Malaysia
* Trigonostemon detritiferus - Brunei
* Trigonostemon diffusus - Sarawak
* Trigonostemon diplopetalus - Sri Lanka
* Trigonostemon dipteranthus - Sumatra
* Trigonostemon eberhardtii - Vietnam
* Trigonostemon elegantissimus - Borneo
* Trigonostemon elmeri - Sabah
* Trigonostemon everettii - Philippines
* Trigonostemon filiformis - Luzon
* Trigonostemon flavidus - Hainan, Laos, Myanmar, Thailand
* Trigonostemon fragilis - Guangxi, Hainan, Vietnam
* Trigonostemon gaudichaudii - Vietnam
* Trigonostemon hartleyi - Papua New Guinea
* Trigonostemon heteranthus - Myanmar, Thailand, W Malaysia, Borneo, Sumatra
* Trigonostemon hirsutus - Philippines, Sabah, Sarawak
* Trigonostemon howii - Hainan, Vietnam
* Trigonostemon hybridus - Cambodia
* Trigonostemon inopinatus - Queensland
* Trigonostemon ionthocarpus - Sabah, Sarawak
* Trigonostemon kerrii - Thailand
* Trigonostemon laetus - Myanmar
* Trigonostemon laevigatus - Andaman Is.,Indochina, Philippines, Borneo, Sumatra
* Trigonostemon lanceolatus - Myanmar
* Trigonostemon laoticus - Laos
* Trigonostemon laxiflorus - Philippines
* Trigonostemon longipedunculatus - Philippines, Borneo
* Trigonostemon longipes - Philippines
* Trigonostemon magnificus - Sumatra
* Trigonostemon malaccanus - W Malaysia, N Sumatra
* Trigonostemon matangensis - Sarawak
* Trigonostemon matanginsu - Sarawak
* Trigonostemon merrillii - Philippines, Sabah
* Trigonostemon murtonii - Thailand, Vietnam
* Trigonostemon nemoralis - SW India, Sri Lanka
* Trigonostemon nigrifolius - Myanmar
* Trigonostemon oblanceolatus - Philippines
* Trigonostemon pachyphyllus - S Thailand
* Trigonostemon pentandrus - W Malaysia
* Trigonostemon philippinensis - Philippines, Borneo, Sumatra
* Trigonostemon phyllocalyx - Thailand, Vietnam
* Trigonostemon pierrei - Phú Quốc Island
* Trigonostemon poilanei - Vietnam
* Trigonostemon polyanthus - Philippines, Borneo
* Trigonostemon praetervisus - N Bangladesh
* Trigonostemon quocensis - Cambodia, Vietnam, Thailand, Myanmar
* Trigonostemon reidioides - Cambodia, Vietnam, Thailand, Myanmar, Laos
* Trigonostemon rubescens - Laos, Cambodia
* Trigonostemon rufescens- W Malaysia
* Trigonostemon salicifolius - Selangor
* Trigonostemon sandakanensis - Sabah
* Trigonostemon sanguineus - Vietnam
* Trigonostemon semperflorens - Assam, Bangladesh
* Trigonostemon serratus - Bali, Java
* Trigonostemon sinclairii - W Malaysia
* Trigonostemon stellaris - Vietnam
* Trigonostemon stenophyllus - Luzon
* Trigonostemon sunirmalii - Myanmar
* Trigonostemon thorelii - Laos
* Trigonostemon thyrsoideus - S China, Indochina
* Trigonostemon tuberculatus - Yunnan
* Trigonostemon verrucosus - Java
* Trigonostemon verticillatus - S Thailand, W Malaysia, Sumatra
* Trigonostemon villosus - W Malaysia, Sumatra, Borneo, Nicobar Is
* Trigonostemon viridissimus - Assam, Andaman Is, W Malaysia, Sumatra, Myanmar, Bali
* Trigonostemon voratus - Fiji
* Trigonostemon wenzelii - Leyte
* Trigonostemon wetriifolius - W Malaysia
* Trigonostemon whiteanus - Philippines
* Trigonostemon xyphophylloides - Hainan

## formerly included

moved to other genera (Cleidion Croton Dimorphocalyx Omphalea Paracroton Wetria )
* T. arboreus - Omphalea malayana
* T. asahanensis - Dimorphocalyx muricatus
* T. beddomei - Dimorphocalyx beddomei
* T. bulusanensis - Dimorphocalyx bulusanensis
* T. cumingii - Dimorphocalyx cumingii
* T. forbesii - Wetria insignis
* T. lawianus - Croton lawianus
* T. macrophyllus - Paracroton pendulus
* T. oliganthus - Cleidion papuanum
* T. zeylanicus - Paracroton pendulus subsp. zeylanicus