Modular constructive element in which its shape allows the fixation, growth and coverage of bryophytes without substrates, characterized in that the module (1) and its surface morphology, object of the invention, comprise morphological means for gripping the bryophyte (2), a morphological means of irrigation (3) and a morphological means of retention and absorption of water from precipitation (5). The module is presented already vegetated and allows to be installed forming planes of variable dimensions with the help of fixings. The module also contains; a stuffed pipe (5), a constructive support (6), tanks, control device and vegetables (7). (Machine-translation by Google Translate, not legally binding)