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1. Small flat green bean similar to lima beans
   - sieva bean, butter bean, civet bean

1. Bush bean plant cultivated especially in southern United States having small flat edible seeds
   - sieva bean, butter-bean plant, lima bean, Phaseolus lunatus

Derived forms: butterbeans, butter beans

Type of: shell bean, shell bean plant

Part of: genus Phaseolus, Phaseolus

Encyclopedia: Butter bean