Anther rubbing in Erysimum incanum
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Anther rubbing is a mechanism based in autonomous, repeated, and coordinated movement of the stamens over the stigma during flower opening that promotes self-fertilization.
This mechanism and its consequences are described in the scientific paper:
Abdelaziz M, Bakkali M, Gómez JM, Olivieri E, Perfectti F. (2019). Anther rubbing, a new mechanism that actively promotes selfing in plants. The American Naturalist (in press)
The DOI will be dx.doi.org/10.1086/700875
More information: amnat.org/an/newpapers/JanAbdelaziz.html
Photography and video: Francisco Perfectti