''Triadica'' is a

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclu ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Euphorbiaceae Euphorbiaceae, the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of a genus in the family. Most spurges, such as '' Euphorbia paralias'', are herbs, but some, ...

first described as a genus in 1790. It is native to eastern southeastern, and southern Asia.Kew World Checklist of Selected Plant Families
/ref>Flora of China Vol. 11 Page 284 乌桕属 wu jiu shu ''Triadica'' Loureiro, Fl. Cochinch. 2: 598, 610. 1790.
/ref> Species included are: # '' Triadica cochinchinensis'' Lour. - China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang), Cambodia, Assam, Bangladesh, Bhutan, Nepal, Himalayas of E + N India, Borneo, Sulawesi, Sumatra, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam # '' Triadica rotundifolia'' (Hemsl.) Esser - Guangdong # '' Triadica sebifera'' (L.) Small - China (Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Jiangxi, Jiangsu, Shaanxi, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang), Japan; naturalized in Himalayas, Cuba, Puerto Rico, SE + SC USA, Sacramento Valley in N CaliforniaBiota of North America Program 2013 county distribution map
/ref> A species formerly included but moved to '' Neoshirakia'' is: *''Triadica japonica'' (Siebold & Zucc.) Baill. - '' Neoshirakia japonica'' ''(Siebold & Zucc.) Esser''

References

Hippomaneae Euphorbiaceae genera {{Euphorbiaceae-stub