 The lotus effect refers to the superhydrophobic and self-cleaning properties of lotus leaves, which have led to the development of similar surfaces in other plants. However, the lotus shows better stability and perfection of its water repellency due to unique micro and nanostructure, chemical composition, and mechanical properties of its upper epidermis, including papillae shape, epicuticular wax tubules, and robustness of the papillae and wax tubules. The optimization of the upper side of the lotus leaf is likely due to the location of stomata in this area, which requires protection from rain and contamination. This article was authored by Hans J. Ensacat, Petra Ditchkuru, Christoph Nainwes, and others.