pimpernel/ˈpɪmpənel; `pɪmpɚˌnɛl/ nwild plant with small, star-shaped, scarlet, blue or white flowers that close up in wet or cloudy weather 海绿（矮小野生植物, 花星形, 呈红、 蓝或白色, 阴雨天闭合）.
牛津英汉双解词典