Abuta rufescens

Abuta rufescens climbs from the rainforest canopy. The inflorescences are woolly, and have large yellow flowers. The leaves are 10–14.5 centimetres (3.9–5.7 in) long, and 8.5–19 centimetres (3.3–7.5 in) wide.

Abuta rufescens is native to the wet tropical biome of South America. It is present in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. Within Brazil, the species is present in Acre, Amazonas, Amapá, Pará, Rondônia, Roraima, Tocantins, Bahia, Mato Grosso, Espírito Santo, Minas Gerais, and Rio de Janeiro. Within Colombia, it is present in the departments of Amazonas, Cauca, and Putumayo. Abuta rufescens is present at elevations of 100–600 metres (330–1,970 ft). Its estimated area of occurrence is 7,982,936.49 square kilometres (3,082,229.01 sq mi).

Abuta rufescens has medicinal uses. It is traditionally used to treat angina, malaria, snake bites, intermittent fever, indigestion, and flatulence. Indigenous people also used the plant in the preparation of curare.