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Gnetum africanum
Also called Eru
African jointfir (eru) is a wild forest vine from tropical West and Central Africa, grown for its leaves, which are eaten as a vegetable in soups and stews. It thrives in shade and humid conditions and is not a typical garden or houseplant.
Gnetum africanum (eru or African jointfir) is a species of vine native to tropical Africa. Though bearing leaves, the genus Gnetum are gymnosperms, related to pine and other conifers.
Gnetum africanum has numerous common names and is grown in various countries across Africa, including: Cameroon (Eru, okok, m'fumbua, or fumbua), Angola (KoKo), Nigeria (ukazi, "okazi", in Igbo or afang in Efik and Ibibio), Gabon (Nkumu), Central African Republic (KoKo), Congo (KoKo), and the Democratic Republic of Congo (m'fumbua or fumbua). Gnetum africanum has also been referred to as a form of 'wild spinach' in English.
Since Gnetum africanum grows best in shaded areas it could be used as a complementary crop on tree farms. Specifically, it has been suggested that the vine could be used as a complementary crop for rubber and oil trees. However, the necessity for shaded, but not excessively moist, conditions may make it difficult for poor farmers to grow Gnetum africanum if they lack access to suitable lands. However, since Gnetum africanum grows via rhizomes it is not labour-intensive, therefore allowing farmers to focus physical capital elsewhere.
Sustainable cultivation practices, such as harvesting the leaves regularly rather than uprooting the whole vine, allows for a more viable supplementary income throughout the year. The FAO has found that the vine is easier to reproduce by cuttings than by growing from seeds.
Gnetum africanum is found mainly in the humid tropical forest regions of Central African Republic, Cameroon, Nigeria, Gabon, Republic of the Congo, Democratic Republic of the Congo and Angola. It has been found in primary and secondary semi-deciduous humid forests, both in dense and sunny transitional savannah locations, ranging from sea-level to 1200 meter altitude. The shade tolerant vine does not grow well in direct sunlight and can be found climbing on middle and under-story trees.
Subsistence agriculturalists in Cameroon may be able to improve their nutritional, environmental, social, and economic situations by growing this vine. Nutrition can be improved by using the plant for medicinal purposes as well as through edible consumption.
Text excerpted from the Wikipedia article Gnetum africanum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
