Growth habits of stemona in Thailand... Small branched timers, inflotescences pedunculate, flowers small or medium... Plant erect, leaves chordate, lowermost inflorescences sesssile... Plant erect, leaves cordate, all inflorescences pedunculate...low, erect or decumbent herbs, or small UN branched twiners, leaf base cuneate or truncate, inflorescences sessile, flowers small...larger unbranched twiner, upper leaves opposite, flowers... medium sized unbranched twiner, inflorescences sessile, flower medium.