A multi-petaled mounting member for an ostomy pouch is disclosed. The mounting member comprises a flexible plastic member comprising a central body portion, a surrounding rim, and an outer perimeter, a first double-sided adhesive substrate member comprising a first face, an opposite second face, and an outer perimeter, a second double-sided adhesive substrate member comprising a first face, an opposite second face, and a multi-petaled outer perimeter, and an adhesive skin barrier member comprising a first face, an opposite second face, and a multi-petaled outer perimeter. The perimeters of the first member and the adhesive skin barrier member substantially correspond in size and shape to the perimeters of the flexible plastic member and the second member, respectively. The perimeter of the second member has a size greater than the perimeter of the flexible plastic 46 member and a shape corresponding to 2 to 8 petals extending radially from the second member.
