Landolphia angustisepala is a species within the Apocynaceae family.

[1] Landolphia angustisepala is a large liana with curled tendrils that grow up to 30 cm long, tendril hooks can reach 2.5 cm long.

Its branches are red or brownish in color often with lenticels.

[1] Leaves, petiole is 3-6 mm long; when dry, its leaflets have a coriaceous surface, the leaf-blade is ovate to obovate in shape, apex is acuminate but sometimes rounded or obtuse and it is basally acute.

[1] Occurs in the rainforest areas of Gabon and the Democratic Republic of the Congo.