Mysterious Bean

The bean dubbed "Wang's Red Bean" has bloomed! Now I'm finally able to scan it using the Plantsnap app. The only problem is the app can't identify what type of bean it is! Its first guess was that it was an orchid. I was very disappointed. The flowers are large grow on the end of their very own stems, which are long. By midday the flowers close. I don't know if they're open at night but they are in the early morning. The plant is a pole type. These are the only clues I have concerning its identity.