The Canadian Encyclopedia — neutral, cited, updated
July 26, 2026Sources cited
Canadianwire.
Canada’s encyclopedia & explainer
HomeScience & NatureAgricultureFonio
Science & Nature • Agriculture

Fonio

Fonio is the common name for two cultivated West African cereal grasses in the genus Digitaria, especially white fonio (*Digitaria exilis*) and black fonio (*Digitaria iburua*).

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Fonio is the common name for two cultivated West African cereal grasses in the genus Digitaria, especially white fonio (Digitaria exilis) and black fonio (Digitaria iburua). It is an important traditional grain in parts of the Sahel, valued for its fast growth and drought tolerance. Fonio is of interest to Canadian readers as a gluten-free heritage grain and specialty food crop increasingly discussed in global agriculture and nutrition.

Botany and classification

Fonio belongs to the grass family Poaceae and the genus Digitaria. In common usage, the name covers two main cultivated species: white fonio (Digitaria exilis) and black fonio (Digitaria iburua).

Cultivation and distribution

Fonio is native to West Africa and is grown in countries including Guinea, Mali, Burkina Faso, Senegal, Nigeria, and Côte d’Ivoire. It is adapted to tropical climates with a marked dry season and is often grown in semi-arid regions and poor soils.

Food use and nutrition

Fonio grain is eaten in traditional foods and can be processed into porridge, couscous, flour, and other dishes. It is widely described as gluten-free and as a nutritionally valuable grain, although specific nutritional claims vary by source.

Cultural and agricultural importance

Fonio is one of the oldest known cultivated cereals in West Africa and has long been associated with food security during lean seasons. Its quick maturity and resilience make it important for small-scale farmers in drought-prone areas.

Key facts

  • Fonio refers to two cultivated cereal grasses rather than a single species.
  • White fonio (Digitaria exilis) is the most widely cultivated type.
  • Fonio is known for growing well in dry, poor-soil conditions.
  • It is an important subsistence and food-security crop in parts of the Sahel.
  • Fonio is of interest as a gluten-free heritage grain and specialty food crop.
🍁
Canadian context

Fonio is of interest to Canadian readers as a gluten-free heritage grain and specialty food crop increasingly discussed in global agriculture and nutrition.

Frequently asked questions

What is fonio?
Fonio is the common name for two cultivated cereal grasses in the genus *Digitaria*, especially white fonio and black fonio.
Where does fonio come from?
Fonio is native to West Africa and has been cultivated there for thousands of years.
What are the main types of fonio?
The main types are white fonio (*Digitaria exilis*) and black fonio (*Digitaria iburua*).
How is fonio used?
The grain is used for porridge, couscous, flour, and other traditional foods.
Why is fonio agriculturally important?
It grows quickly and tolerates drought and poor soils, making it useful in food-secure and low-rainfall farming systems.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Fonio
    Supports: Fonio as the common name for two cultivated Digitaria grasses; West African distribution; key species and uses.
  2. Encyclopaedia Britannicahttps://www.britannica.com/plant/fonio
    Supports: Fonio as two cereal grass species in Digitaria; West African cultivation; resilience in poor soils and challenging climates.
  3. Crop Trusthttps://croptrust.org/knowledge-hub/crops/crops/fonio/
    Supports: White fonio and black fonio; West African origin; drought resistance; agricultural and subsistence importance.
  4. CIRADhttps://fonio.cirad.fr/en/the-plant
    Supports: Botanical description, plant height, inflorescence, and classification within Digitaria and Poaceae.
  5. Penn State PlantVillagehttps://plantvillage.psu.edu/topics/fonio/infos
    Supports: White fonio as Digitaria exilis; annual grass in Poaceae; grain uses such as porridge; origin in West Africa.