Lily is radically symmetrical. Penstemon is bilaterally symmetrical. Ray flower of chrysanthemum is bilaterally symmetrical. Disk flower of a chrysanthemum is radically symmetrical. Radically symmetrical is a body plane dividing the organism into similar halves by passing through any angle. Bilaterally symmetrical is a body plane dividing the organism into similar roughly mirror image halves. Solution Lily is radically symmetrical. Penstemon is bilaterally symmetrical. Ray flower of chrysanthemum is bilaterally symmetrical. Disk flower of a chrysanthemum is radically symmetrical. Radically symmetrical is a body plane dividing the organism into similar halves by passing through any angle. Bilaterally symmetrical is a body plane dividing the organism into similar roughly mirror image halves..