Callaeum is a genus of flowering plants belonging to the family Malpighiaceae. The genus comprises a small number of species, typically found as woody vines or shrubs.
Description
Species within the genus Callaeum are characterized by their often scandent (climbing) or shrubby growth habit. Their leaves are simple and opposite. The flowers are generally showy, typically yellow, and arranged in axillary or terminal inflorescences. Like many members of the Malpighiaceae family, the sepals often bear large glands. The fruits are schizocarps that split into samaras (winged, indehiscent fruits), which aid in wind dispersal.
Distribution
Callaeum is native to the Neotropics, with its species distributed from Mexico south through Central America and into tropical South America, reaching as far south as Argentina. They are typically found in dry tropical forests, scrublands, and savannas.
Taxonomy
The genus Callaeum was established by William John Burchell. It is part of the larger Malpighiaceae family, which is known for its diverse forms, including trees, shrubs, and vines, often characterized by glandular hairs and distinctive fruit types.