ostryopsis: deciduous monoecious shrubs of China and Mongolia resembling trees of the genus Ostrya; sometimes placed in subfamily or family Carpinaceae
hamamelid dicot genus: genus of mostly woody relatively primitive dicotyledonous flowering plants with flowers often unisexual and often borne in catkins
kepler's second law: a law concerning the speed at which planets travel; a line connecting a planet to the sun will sweep out equal areas in equal times