I think bindweed and sweetheart vine are one and the same, aren't they? Flowers simply depend on the season.
Ross, "Whoops, there goes another rubber tree plant....."
Rubber trees have elongated fat oblong leaves - they don't have tendrils and the leaves all sprout from one single stem. The leaves on this vase are heart -shaped, and they and their stems twist and turn around the piece. :thup: