Hyacinth bean (Lablab purpureus).
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The Hyacinth Bean is widespread as a food crop throughout the tropics, especially in Africa, India and Indonesia. The hyacinth bean grows as a vine, producing purple flowers and striking electric-purple colored seed pods. It grows fast, has beautiful, fragrant flowers that attract butterflies and hummingbirds, and it even produces edible leaves, flowers, pods, seeds and roots.