Flower lacking either an androecium (stamens) or a gynoecium (carpels); also called a unisexual flower.
                                                            
                                                     
                        
                                                
                        
                        
                            A flower that is missing either the pistil or stamens, the essential components.
                                                            
                                                     
                        
                                                
                        
                        
                            Lacking either stamens or pistils.
                                                            
                                                     
                        
                                                
                        
                        
                            An imperfect flower has either male ( stamen) and female ( ovary) reproductive organs on the same flower, but not both. (Compare with perfect flowers.)