Tropicals & Tender Perennials: Pulled from it's roots., 1 by Brugie

Brugie wrote:
This is a flower from a plant that Eric pulled from the garden last fall. I wasn't sure I was going to save the plant last year, but it made it as you can see. The color is a little bright. The bloom is more of a pale yellow, short tendrils, and a scent to die for. The tendrils tend to all twist counter clockwise. It was very waxy last night when I picked the bloom. Had to keep my nose in it as long as I could. Later it began to smell more like lemons. What might this plant be? Any ideas. I'm sure it was grown from seed, but would like a little background.