Hexalobus monopetalus is a species of plant in the family Annonaceae with the common name baboon's breakfast.

[3][4] It is native to Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Senegal, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zaire and Zimbabwe.

[5] Achille Richard, the French botanist who first formally described the species, using the basionym Uvaria monopetala, named it after its petals which are fused at their base.

The upper sides of the leaves are slightly glossy and hairless to sparsely covered in cream-colored hairs that are 0.3 millimeters long.

The undersides of the leaves are hairless to densely covered with straight to curly hairs that are 0.2-0.8 millimeters long.

The leaves have 6-15 pairs of secondary veins emanating from their midribs at angles of 50°-80° that arch and connect with one another near the leaf margins.

Its fragrant flowers occur in groups of 1-3 among leaves, on twigs, or directly from the trunk and are born on short, 2 by 2 millimeter peduncles.

The connective tissue between the lobes of the anthers extends upward to form a disc-shaped cap.

[8] Bioactive molecules extracted from its fruit have been reported to have antifungal activity in test with Candida albicans.