Vegetable
Phaseolus vulgaris
S tier
Phaseolus vulgaris is the common bean species behind green beans eaten as immature pods—snap beans—as well as dry shell beans. Green-bean types were selected for low string (in modern snaps), fleshy walls, and harvest before seeds dominate. Flavour is grassy-sweet; over-mature pods turn tough and starchy. Steam, sauté, blanch for salads, or slow-braise Southern style. Species umbrella covers bush and pole snaps, yellow wax, and purple pods that green when cooked. Store cold and use quickly—pods wilt and lose snap.
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Characteristics
Preparations
Traits
Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
History
Common bean was domesticated in the Americas long before green-pod specialty types.
European gardens adopted Phaseolus and eventually selected tender green pods.
Stringless snap breeding transformed green beans into a modern vegetable crop.
Frozen whole and cut green beans industrialised P. vulgaris pod supply.