The discoid nectary of Phaseolus vulgaris cv. Red Kidney, produces nectar comprised of sugars, amino acids, protein, lipids, reducing acids, phenols, and alkaloids. Nectar is secreted through open stomates located near the inner and outer rims of the shallowly lobed nectary. Closed stomates are present on external and internal flanks of the nectary. Nectar production by this autogamous cultivar is anomolous, since such production usually exists to attract pollinators to ensure transfer of germ cells. Honey bees and bumblebees which regularly visit the plants for nectar are provided with a highly nutritious resource, apparently at the expense of the plant. Diversion of energy for nectar production thus appears to be an unrewarded expense to this cultivar.