Monotypic Zingiberales genera

Phenakospermum is a monotypic genus in the family Strelitziaceae. Only one species is recognized, Phenakospermum guyannense, native to Suriname, French Guiana and the eastern Amazon River basin. This plant grows to over in height but can be felled with a single blow with a machete.

Tamijia flagellaris is the only species within the genus Tamijia. It is part of the family Zingiberaceae (the ginger family).

Leptosolena is a genus of plants in the Zingiberaceae. It has only one known species, Leptosolena haenkei, endemic to the island of Luzon in the Philippines.

Myrosma is a genus of plants. Only one species is currently recognized: Myrosma cannifolia, the cannaleaf myrosma, native to northern South America (Brazil, Peru, Bolivia, Suriname, French Guiana, Guyana) as well as Trinidad and the Windward Islands. It is considered naturalized in Haiti, Puerto Rico and the Leeward Islands.

Trachyphrynium is a monotypic genus of plants native to tropical Africa. The only recognized species is Trachyphrynium braunianum (K.Schum.) Baker, widespread from Liberia to Uganda.

Stadiochilus is a genus of plants in the ginger family. It contains only one known species, Stadiochilus burmanicus, first described by Rosemary Margaret Smith in 1980 and endemic to Myanmar (Burma).

Cyphostigma is a genus of plants. It contains only one accepted species, Cyphostigma pulchellum, endemic to Sri Lanka.

Afrocalathea is a genus of plants native to Africa. It contains only one species: Afrocalathea rhizantha (K.Schum.) K.Schum, known from Nigeria, Cameroon, Gabon, Cabinda, and Congo-Brazzaville.

Sanblasia is a monotypic genus of plants. At present, the only species recognized is Sanblasia dressleri L.Andersson, endemic to Panama.

Nanochilus is a genus of plants in the ginger family. It contains only one known species, Nanochilus palembanicus, endemic to Sumatra.

Koernickanthe is a monotypic genus of flowering plants. It contains only one recognized species, Koernickanthe orbiculata (Körn.) L.Andersson, native to Brazil, Bolivia and Suriname.

Parakaempferia is a genus of plants in the ginger family. It contains only one known species, Parakaempferia synantha, first described in 1971 and endemic to the Assam region of eastern India.

Siamanthus is a genus of plants in the ginger family, Zingiberaceae. It contains only one known species, Siamanthus siliquosus, endemic to Thailand and first described in 1998.

Monocostus is a group of plants in the Costaceae described as a genus in 1904. There is only one known species, Monocostus uniflorus, endemic to Peru.