Wild ginger (Alpinia japonica), Japan (IMAGE) Pensoft Publishers Caption The present study looked into the wild ginger in Japan (Alpinia japonica, Zingiberaceae). Its flowers open in the morning and wither around sunset, as many one-day flower plants do. Credit Shoko Sakai Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.