Apeiba is a genus of shrubs and trees in the mallow family Malvaceae (order Malvales), comprising around ten species native to the tropical Americas. The genus ranges from northeastern Mexico and Central America south through the Amazon basin to Bolivia and southeastern Brazil, where its members grow in Amazonian forest, humid montane forest, and seasonally dry or moist forest and thickets, typically at elevations up to about 1,200 metres.
The trees are characterised by soft, light wood that is whitish to pale yellow in colour, sometimes with a pinkish or greenish tint, with a moderately coarse to coarse texture and a generally straight grain. The bark is mucilaginous — a trait that has made it economically useful as a source of tough plant fibre. Wood from the genus is easy to season and work, though of low durability; it is used locally for fuel, lightweight timber, insulating panels, packaging, and crating. Some species are fast-growing natural pioneers in disturbed habitats and have been evaluated for use in reforestation programmes.
Notable species in the genus include Apeiba tibourbou Aubl., Apeiba membranacea Spruce ex Benth., and Apeiba schomburgkii Szyszył., the last named for the nineteenth-century British-Guyanese explorer Robert Schomburgk.
Distribution
Apeiba is native to the tropical Americas, with species distributed from northeastern Mexico and Central America (Guatemala, Nicaragua, Costa Rica, Panama) south through Colombia, Venezuela, the Guianas, and the Amazon basin to Bolivia and southeastern Brazil. Species occur in Amazonian forest, humid montane forest, and dry or moist forest or thickets, up to approximately 1,200 metres elevation.
Ecology
Members of the genus occupy Amazonian rainforest and humid montane forest, as well as drier forest edges and thickets. At least one species (A. tibourbou) is a fast-growing pioneer that colonises disturbed ground naturally and has been considered for tropical reforestation.
Cultural Uses
The bark of Apeiba species is mucilaginous and yields a tough plant fibre used locally for cordage and related purposes. The light, easily worked wood is used as fuel and for lightweight structural purposes such as insulating panels and crating. The flowers of A. tibourbou are used medicinally in parts of its range.
