1. Tropical American bean with red flowers and mottled black beans similar to Phaseolus vulgaris but perennial; a preferred food bean in Great Britain
   "scarlet runner beans are grown both for their ornamental flowers and edible beans";
   - scarlet runner, Dutch case-knife bean, runner bean, Phaseolus coccineus, Phaseolus multiflorus
    
2. Long bean pods usually sliced into half-inch lengths; a favourite in Britain
   "The garden produced an abundance of scarlet runner beans";
   - scarlet runner, runner bean, English runner bean

Derived forms: scarlet runner beans

Type of: green bean, pole bean

Encyclopedia: Scarlet runner bean