Nyctinastie

The Nyctinastie is a type of Nastie which answers the variation day laborer of the light.

At the Oxalis, the sheets in end-of-day are closed again.

This phenomenon should not be confused with the Héliotropisme which is variation of the orientation of the sheets to follow the light (ex: Lupinus arizonicus or Helianthus annuus ).

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