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

moved to other genera (Cleidion Croton Dimorphocalyx Omphalea Paracroton Wetria ) • # T. arboreus - Omphalea malayana
 * formerly included

• # 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