Erythrina fusca is accepted species in  the family Fabaceae  subfamily: Faboideae, tribe: Phaseoleae,  
Genus Erythrina 
This species is found in Andaman Is., Assam, Bangladesh, Belize, Bismarck Archipelago, Bolivia, Borneo, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Cambodia, Caroline Is., Central American Pac, Colombia, Comoros, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Fiji, French Guiana, Guatemala, Guyana, Honduras, India, Jawa, Laos, Leeward Is., Madagascar, Malaya, Maluku, Myanmar, New Caledonia, New Guinea, Nicaragua, Panamá, Peru, Philippines, Puerto Rico, Queensland, Samoa, Solomon Is., Sri Lanka, Sulawesi, Sumatera, Suriname, Tanzania, Thailand, Tonga, Trinidad-Tobago, Vanuatu, Venezuela, Vietnam, Windward Is..