Watch Kinematographische Studien an Impatiens, Vicia, Tulipa, Mimosa und Desmodium von W. Pfeffer (1898-1900) Online
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Plant movements in historical films by Wilhelm Pfeffers: geotropic bending of a horizontal Impatiens glandulifera; germination of Vicia faba; development and flowering in tulip, leaf movement in Mimosa speggazzinii and Desmodium gyrans.
![[plant speech]](https://www.themoviedb.org/t/p/w220_and_h330_face/oXdX1r6KszhF1RzPs6VBQRyi0Q5.jpg)
