A friend gave me a cutting/baby of her larger plant of this type. She claims it's tropical and possibly from a bulb. She says it'll flower once every few years with a large long flower with a stinky scent. The stalk is a light brown with a unique dark greenish spotting/splotches on it. She says it goes dormant in the winter. We live in MN so it's outside in the summer and inside in the winter. I can't figure out what it is and she doesn't know either as it was just passed onto her too. Please help :-)