Xanthosoma is a genus of flowering plants in the arum family, Araceae. The genus is native to tropical America but widely cultivated and naturalized in other tropical regions. Several are grown for their starchy corms, an important food staple of tropical regions, known variously as malanga, otoy, otoe, cocoyam, tannia, tannier, yautía, macabo, ocumo, macal, taioba, dasheen, quequisque, ʻape and as Singapore taro. Many other species, including especially Xanthosoma roseum, are used as ornamental plants; in popular horticultural literature these species may be known as ‘ape due to resemblance to the true Polynesian ʻape, Alocasia macrorrhizos, or as elephant ear from visual resemblance of the leaf to an elephant's ear. Sometimes the latter name is also applied to members in the closely related genera Caladium, Colocasia (taro), and Alocasia.
Caladium is a genus of flowering plants in the family Araceae. They are often known by the common name elephant ear, heart of Jesus, and angel wings. There are over 1000 named cultivars of Caladium bicolor from the original South American plant.
Nephthytis is a genus of eight species of flowering plants in the family Araceae, native to tropical western Africa, with one species in Borneo.
Dracontium is a genus of flowering plants similar to those of Amorphophallus. Unlike Amorphophallus which is found in the Old World, this genus has a New World distribution and is native to South America, Central America, southern Mexico, and the West Indies.
Heteropsis is a genus of plants in the family Araceae, native to Central and South America.
Rhodospatha is a genus of plant in family Araceae. It is native to South America, Central America, and southern Mexico.
Stenospermation is a genus of plant in family Araceae native to South America and Central America.
Aridarum is a genus of flowering plants in the family Araceae. All of the known species in this genus are rheophytic and are endemic to the Island of Borneo. The plant is aquatic and has willow-shaped leaves that are able to take strong currents without sustaining damage.
Asterostigma is a genus of flowering plants in the family Araceae. It is native to Brazil and Argentina. The leaves are pinnate and the plant is tuberous.
- Asterostigma cryptostylumBogner - Brasília, Goiás, Minas Gerais
- Asterostigma cubense(A.Rich.) K.Krause ex Bogner - São Paulo
- Asterostigma lividum(G.Lodd.) Engl. - southern Brazil; Misiones Province of Argentina
- Asterostigma lombardiiE.G.Gonç. - Minas Gerais, Espírito Santo
- Asterostigma luschnathianumSchott - southern Brazil
- Asterostigma reticulatumE.G.Gonç - southern Brazil
- Asterostigma riedelianum(Schott) Kuntze - eastern Brazil
- Asterostigma tweedieanumSchott - Santa Catarina in southern Brazil
Stylochaeton is a genus of flowering plants in the family Araceae that is endemic to Africa. Stylochaeton are rhizomatous with hastate leaves. Flowering in this genus is said to be quite uncommon. Stylochaeton is the sole genus in the tribe Stylochaetoneae.
Alloschemone is a genus of evergreen root climbing plants in the family Araceae that is native to the Amazon region of Bolivia and Brazil. There are only two species in the genus and both are extremely rare. These two species are Alloschemone occidentalis and Alloschemone inopinata. At one point in history, the genus Alloschemone was dissolved and added to Scindapsus, but it has since been reinstated after further observations of the plants.
Urospatha is a genus of flowering plants in the family Araceae that consists of approximately 10 known species. They are found growing in South America and Central America in swamps, wet savannahs, and brackish water. The leaves of the species in this genus are upward pointing and sagittate (arrow-shaped). The inflorescences are quite unique; the spathe is mottled and elongated with a spiral twist at the end. The seeds are distributed by water and have a texture similar to cork that allows them to float. They also quickly germinate in water.
Dracontioides is a genus of flowering plants in the family Araceae. It was long thought to contain only a single species until a second species was described in 2005. Both are endemic to Brazil.
Lagenandra is a genus of flowering plants in the family Araceae. It is endemic to the Indian Subcontinent. The genus is similar to Cryptocoryne, but can be distinguished from it by its involute vernation. Cryptocoryne on the other hand exhibit convolute vernation.
Cercestis is a genus of flowering plants in the family Araceae. The species in this genus are all climbers and are endemic to Africa. At intervals along the stem they produce long leafless shoots called flagella. Many of the species in Cersestis show signs of fenestration.
Eminium is a genus of flowering plants in the family Araceae. The genus ranges from Turkey and Egypt east to Central Asia. Usually they can be found growing in barren areas in sand or stony soil. The foliage of Eminium resembles Helicodiceros and its inflorescence and fruit resembles those of Biarum.
- Eminium albertii(Regel) Engl. - Turkmenistan, Uzbekistan, Afghanistan
- Eminium heterophyllum(Blume) Schott - Iran, Iraq, Turkey
- Eminium intortum(Banks & Sol.) Kuntze - Turkey, Syria
- Eminium jaegeriBogner & P.C.Boyce - Iran
- Eminium koenenianumLobin & P.C.Boyce - Turkey
- Eminium lehmannii(Bunge) Kuntze - Kazakhstan, Kyrgyzstan, Turkmenistan, Uzbekistan, Afghanistan, Tajikistan
- Eminium rauwolffii(Blume) Schott - Turkey, Syria
- Eminium regeliiVved. - Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan
- Eminium spiculatum(Blume) Schott - Egypt, Israel, Palestine, Jordan, Lebanon, Syria, Iraq, Iran
Spathantheum is a genus of flowering plants in the family Araceae. The genus contains two species, Spathantheum fallax and Spathantheum orbignyanum. Spathantheum is believed to be closely related to Spathicarpa. The genus is endemic to the Andes of Peru, Bolivia, and northern Argentina and is found growing in grasslands in rocky soil.
- Spathantheum fallax Hett., Ibisch & E.G.Gonç. - Bolivia
- Spathantheum orbignyanumSchott - Peru, northwestern Argentina, Bolivia
Spathicarpa is a genus of flowering plants in the family Araceae, all of which are endemic to South America. Spathicarpa species are notable for the fact that the entirety of their spadix is fused to the spathe. The genus is believed to be closely related to Spathantheum. The tribe Spathicarpeae is named after the genus Spathicarpa.
Taccarum is a genus of flowering plants in the family Araceae. It is endemic to South America. The genus tends to grow in rocky areas.
- Taccarum caudatumRusby - Bolivia, Peru, Acre State in western Brazil
- Taccarum crassispathumE.G.Gonç. - central Brazil
- Taccarum peregrinum(Schott) Engl. - Paraguay, southern Brazil, Misiones Province of Argentina
- Taccarum uleiEngl. & K.Krause - eastern Brazil
- Taccarum warmingiiEngl. - southern Brazil
- Taccarum weddellianumBrongn. ex Schott - Bolivia, Peru, Paraguay, central and western Brazil
Philonotion is a genus of plants in the family Araceae. It has three known species, native to tropical South America. Some authorities regard it as part of the related genus Schismatoglottis.
- Philonotion americanum(A.M.E.Jonker & Jonker) S.Y.Wong & P.C.Boyce - Brazil, Colombia, Venezuela, the Guianas
- Philonotion bolivaranum(G.S.Bunting & Steyerm.) S.Y.Wong & P.C.Boyce - Venezuela
- Philonotion spruceanumSchott - Venezuela, Colombia, Peru, Bolivia, northwestern Brazil
