Oncinotis glabrata grows as a climbing shrub or liana up to long, with a stem diameter of up to . Its fragrant flowers feature a yellow to greenish yellow corolla. Fruit consists of paired follicles, each up to long. Habitat is forests from sea-level to altitude. Local medicinal uses include as a treatment for yaws sores.[1] O. glabrata is found in Guinea, Liberia, Ivory Coast, Ghana, Benin, Nigeria, Cameroon, the Central African Republic, Equatorial Guinea, Gabon, the Republic of Congo, the Democratic Republic of Congo, Burundi, Uganda, Tanzania and Angola.[2]