Nyctinasty refers to the movement of plants or plant parts in response to day/night changes. Examples include the closing of leaves in various members of the Marantaceae and Fabaceae at night as well as plants like Yucca which have flowers that have a nodding habit during the daylight hours, then turn upwards during the night.
Greenhouse Locator Map:![](http://florawww.eeb.uconn.edu/images/maps/keywords/keyword_nyctinasty_map.png)
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