Peanut
The peanut is the edible seed of *Arachis hypogaea*, a legume in the pea family (Fabaceae).
The peanut is the edible seed of *Arachis hypogaea*, a legume in the pea family. Despite its name, it is not a true nut but a legume that develops underground.
What it is
The peanut (*Arachis hypogaea*) is an annual herbaceous plant in the Fabaceae family. Although commonly called a nut, it is botanically a legume. Its seeds grow in pods that mature underground, a distinctive feature among legumes.
Where it comes from
Native to tropical South America, the peanut was introduced early to the Old World tropics. It is now cultivated globally in warm regions for both small-scale and commercial production, thriving in tropical and subtropical climates.
Why it matters
Peanuts are nutrient-dense, valued for high protein and oil content. As a legume, they enrich soil through nitrogen-fixing bacteria, making them useful in crop rotations. In Canada, peanuts are a common food ingredient and a major allergen, so accurate labelling and allergy awareness are important.
In short
- Peanuts are legumes, not true nuts.
- The plant is native to tropical South America.
- Peanut pods develop underground after flowering.
- Peanuts enrich soil through nitrogen-fixing bacteria.
Peanuts are a common food ingredient in Canada and a major allergen of public-health relevance, so accurate labelling and allergy awareness are important for Canadian readers.
Quick questions
Is a peanut a nut?
What is the scientific name of peanut?
Why are peanuts called groundnuts?
Sources
- Encyclopaedia Britannica — https://www.britannica.com/plant/peanutSupports: Scientific name, family, native range, underground pods, and soil-enriching nitrogen fixation.
- Royal Botanic Gardens, Kew — https://www.kew.org/plants/peanutSupports: Peanuts are legumes in the Fabaceae family and are more closely related to peas than nuts.
- Merriam-Webster — https://www.merriam-webster.com/dictionary/peanutSupports: Definition of peanut as an herbaceous legume with pods that bend into the soil and contain edible seeds.
- ScienceDirect — https://www.sciencedirect.com/topics/pharmacology-toxicology-and-pharmaceutical-science/peanutSupports: Origin in South America, underground pod development, uses, and protein/oil content.
- Committee on Toxicity — https://cot.food.gov.uk/sites/default/files/cot/cotpeanutall.pdfSupports: Peanut is a legume, not botanically related to tree nuts, and is native to South America.