Help me ID this tree [Minden WV, USA ]

I’m at an event in Minden WV Off the New River Gorge and there’s an interesting tree on the property nobody can seem to figure out what it is it’s got leaves that are large but that typical heart shaped leaves and it has bunches of these flowers that have a bulb that has a green skin that is turning black/dark brown and the inside of the bulb has a light brown and off white pulp that has the texture similar to coconut meat can anyone help me