Which of the plants covers a larger part of the world, Calibrachoa or Astilboides?
Astilboides Astilboides, a genus of the saxifrage family containing only one species, a herbaceous perennial once included in the genus Rodgersia. It comes from China and differs from its former relatives mainly in its leaf shape. It is grown for its huge bright green, circular leaves to 36 in (90 cm) across with the stem attached to the center, and large fluffy racemes of tiny white flowers produced in summer.
Prostanthera prostantheroides Prostanthera prostantheroides is a plant in the family Lamiaceae, found only in West Australia. It was formerly treated as one of two species in the genus "Wrixonia", now included in "Prostanthera" by the World Checklist of Selected Plant Families.