Curcumin is a bright yellow chemical produced by "Curcuma longa" plants. Curdione is a chemical compound isolated from "Curcuma wenyujin". Other countries in tropical Asia also have numerous wild species of "Curcuma". Edu-Games is also a promotional partner of Curcuma SOHO, and Nutricia. However, estrogenic activities of "Curcuma comosa" were milder than those of estradiol. Synonyms include&colon; "Curcuma kurzii" King ex Baker; "Curcuma coccinea" Wall. Some other "Curcuma" species, such as "Curcuma comosa" also produce diarylheptanoids. "Curcuma zanthorrhiza" is used as a medicinal plant. Curcuma comosa is a species of flowering plant in the ginger family. Turmeric ("Curcuma longa") is a rhizomatous herbaceous plant used as a spice. The scientific name is sometimes written as "Curcuma xanthorrhiza", but this is an orthographical variant. Synonyms include "Curcuma cordata" Wall. and the "nomen nudum" "Curcuma cordifolia" Roxb. "Curcuma zanthorrhiza" flourishes up to 1500 m above sea level in a tropical climate. The "Curcuma longa L." is a perennial herb, which belongs to the ginger family, Zingiberaceae.