Is African Yam Bean edible?

Yes — African Yam Bean (Sphenostylis stenocarpa) is catalogued as edible in this database. Always confirm species ID before harvest and source from clean ground.

How should African Yam Bean be stored?

Dried African Yam Bean keeps 12–18 months in an airtight glass jar away from direct sunlight and moisture. Volatile-oil constituents degrade faster — buy in small quantities and use within 6 months of opening for peak potency. Refrigerate tinctures once opened.

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African Yam Bean

Sphenostylis stenocarpafam. Fabaceae

Educational content — not medical, botanical, or professional advice. Plant identification, safety, and edibility depend on local conditions, cultivars, and correct identification. Consult a qualified botanist or forager before consuming or handling wild specimens. How we source & review →

edible perennialvinesperennialculinaryedible rootedible seednitrogen fixeredible

Updated7 July 2026·Quick Q&A →

Sphenostylis stenocarpa (African Yam Bean) — botanical photograph

Pl. 68F9 — Sphenostylis stenocarpa

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Overview

The African Yam Bean (Sphenostylis stenocarpa) is a perennial legume native to the tropical regions of Africa, including Angola, Benin, Burundi, Cameroon, Central African Republic, Chad, Congo, Ethiopia, and others. This plant thrives in full sun with moist soil that is light or medium in texture, making it adaptable to various conditions. Standing at 2 meters tall, it is known for its edible parts—leaves, roots, seeds, and seedpods—which are utilized by local communities. Its versatility as both a food source and ornamental plant makes the African Yam Bean an important species in many African gardens and agricultural practices.

Quick answers

What is African Yam Bean?

Full Q&A reference →

Compare with:Acacia holosericea→Acacia mearnsii→Adenanthera pavonina→all comparisons →

Growingconditions · propagation · uses

Cultivation

African Yam Bean thrives in full sun and requires moist soil that is well-draining and of medium texture, similar to sandy or loamy conditions. It grows best in hardiness zones 10-12 but can be found naturally in various regions across Africa. This perennial plant reaches a height of about 2 meters and produces edible parts including leaves, roots, seeds, and seedpods. Regular watering is essential for its growth, while it prefers light to medium soil types.

Light

Full sun

Water

Moist

Soil

Light (sandy), Medium

Hardiness

10-12

Life cycle

Perennial

Mature size

2.0 m tall

For first-time growers

How to grow African Yam Bean for the first time

8steps

Start with African Yam Bean to gain experience in growing legumes.

1
What you'll need
Seeds, a garden or container pot, and basic gardening tools.
2
Best time to plant
Plant seeds when the soil is moist and temperatures are above 10-12°C (50-54°F).
3
Soil and container prep
Use light or medium soil in a well-draining pot or garden bed.
4
Sowing or transplanting
Direct sow seeds 2 cm deep, spacing them about 30-60 cm apart. Ensure they have enough room to grow.
5
First two weeks
Keep the soil moist and provide full sun exposure. Monitor for pests and diseases.
6
Ongoing care
Water regularly, especially during dry periods, and fertilize with compost or organic matter once a month.
7
Harvest or pruning
Prune vines to maintain shape and remove dead leaves. Harvest pods when they turn brown.
8
Common mistakes
Overwatering, planting in heavy soil, neglecting to prune, and not providing enough sunlight.

Edible & utility

Edible parts:LeavesRootSeedSeedpod

Edible uses: The African Yam Bean is eaten in various forms. Its leaves and seedpods are often consumed raw or cooked as a vegetable. The seeds can be eaten fresh, roasted, or ground into flour. They are also used to make beverages. The root is sometimes boiled and eaten too.

Contextrange · companions · related

VII

Distribution

25 native · 1 introduced

Distribution across1 continent· 25 native· 1 introduced

Africa23 regions

native (22)AngolaBeninBurundiCameroonChadCôte d'IvoireEthiopiaGabonGhanaGuineaKenyaMalawiMaliMozambiqueNigerNigeriaSudanTanzaniaTogoUgandaZambiaZimbabwe

introduced (1)Burkina Faso

Broader regions

native:Central African Repu, Congo, Zaïre

Specimen gallery

1 image

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Companion planting

African Yam Bean companions →

Compare with similar plants

vs Acacia holosericea vs Acacia mearnsii vs Adenanthera pavonina

Growing zone

USDA zone 10-12

XII

About this entry

Last updated: 7 July 2026
Citation: How to cite this entry · Submit a correction

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African Yam Bean

Overview

What is African Yam Bean?

Cultivation

How to grow African Yam Bean for the first time

What you'll need

Best time to plant

Soil and container prep

Sowing or transplanting

First two weeks

Ongoing care

Harvest or pruning

Common mistakes