Pea
The pea is an annual legume plant in the family Fabaceae, best known for its edible seeds and pods.
The pea is an annual legume plant in the family Fabaceae, best known for its edible seeds and pods. The cultivated pea, *Pisum sativum*, is grown worldwide as a cool-season crop for food, animal feed, and soil improvement. Peas have also been important in plant genetics, especially through the work of Gregor Mendel.
Description
Pea plants are annual herbaceous legumes with tendrils, compound leaves, and white, pink, purple, or red flowers. They produce pods containing multiple seeds, and some cultivars are selected for edible pods rather than shelled seeds.
Cultivation and uses
Peas are grown as a cool-season crop in many parts of the world. They are used as a vegetable, a dry grain legume, livestock feed, green manure, and in crop rotations and conservation plantings.
Origin and domestication
Peas are an ancient crop believed to have been domesticated in the Mediterranean and western Asia, with early cultivation thousands of years ago. They have long been grown across the temperate Northern Hemisphere.
Nutritional and scientific importance
Peas are a source of protein, fibre, vitamins, and minerals. They are also historically significant in genetics because Mendel used peas in experiments that helped establish the laws of inheritance.
Key facts
- Peas are legumes in the Fabaceae family and are grown for edible seeds and, in some varieties, edible pods.
- The cultivated pea is *Pisum sativum*, an annual plant with a climbing or bushy habit.
- Peas are cool-season crops and are widely cultivated in temperate regions.
- Pea seeds are valued for their protein content and other nutrients.
- Peas can improve soil fertility because they fix atmospheric nitrogen through symbiosis with *Rhizobium* bacteria.
Canada is one of the major pea-producing countries and grows peas extensively on the Prairies, especially for dry pea, processing, and export markets.
Frequently asked questions
What is a pea?
Are peas vegetables or legumes?
Where did peas come from?
Why are peas important in agriculture?
Are peas used in genetics?
References
- Encyclopaedia Britannica — https://www.britannica.com/plant/peaSupports: Pea as *Pisum sativum*, family Fabaceae, edible seeds, global cultivation.
- USDA NRCS — https://plants.sc.egov.usda.gov/DocumentLibrary/factsheet/pdf/fs_pisa6.pdfSupports: Cool-season crop, edible seed or seed pods, annual legume, crop uses.
- Penn State PlantVillage — https://plantvillage.psu.edu/topics/pea/infosSupports: Annual herbaceous legume, growth habit, pods, flower colours, size, origin, temperature tolerance.
- Royal Botanic Gardens, Kew — https://kew.org/plants/peaSupports: Annual climbing herb and general plant description.
- University of Oxford — https://herbaria.plants.ox.ac.uk/bol/plants400/Profiles/OP/PisumSupports: Cultivation history, nitrogen fixation, varieties, Mediterranean origin, genetics significance.
- ScienceDirect Topics — https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/peaSupports: Major grain legume, uses as human food and animal feed, protein content, production regions including Canada.