Earlier classifications placed the genus within the monogeneric family Taccaceae, which in turn was the sole family in the order Taccales.
Dahlgren recognised the similarities to the genera within the Dioscoreales, and incorporated the family into that order.
Subdivision There are at least 16 species, •
Tacca ampliplacenta L.Zhang & Q.J.Li - Yunnan •
Tacca ankaranensis Bard.-Vauc., 1997 - Madagascar •
Tacca bibracteata Drenth - Sarawak •
Tacca borneensis Ridl. - Borneo •
Tacca celebica Koord. - Sulawesi •
Tacca chantrieri André, 1901 - Indochina, Assam, Bangladesh, Tibet, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Yunnan •
Tacca ebeltajae Drenth - Papua New Guinea, Solomon Islands •
Tacca integrifolia Ker Gawl., 1812 - Tibet, Bhutan, Assam, Bangladesh, Indochina, India, Pakistan, Java, Malaysia, Sumatra, Borneo •
Tacca leontopetaloides (L.) Kuntze, 1891 - widespread across tropical Africa, Madagascar, Indian Subcontinent, Southeast Asia, New Guinea, Australia, and various islands of the Indian and Pacific Oceans •
Tacca maculata Seem., 1866 - Western Australia, Northern Territory, Fiji, Samoa •
Tacca palmata Blume - Indonesia, Indochina, Malaysia, Philippines, New Guinea •
Tacca palmatifida Baker - Sulawesi •
Tacca parkeri Seem. - South America •
Tacca plantaginea (Hance) Drenth, 1972 - Indochina, southern China •
Tacca reducta P.C.Boyce & S.Julia - Sarawak, Borneo, Malesia •
Tacca subflabellata P.P. Ling & C.T. Ting, 1982 - Yunnan :
Synonyms: •
Tacca lanceolata Spruce - Brazil, Venezuela =
Tacca parkeri Seem. ==Cultivation==