Are Callistephus and Epacris native to the same area of the world ?
Epacris Epacris is a genus of about 35–40 species of flowering plants in the family Ericaceae. It was formerly treated in a closely related but separate family Epacridaceae, but the various genera within Epacridaceae including "Epacris" have been revised in their relationships to each other and brought under the common umbrella of the Ericaceae. The genus "Epacris" is native to eastern and southeastern Australia (southeast Queensland south to Tasmania and west to southeast South Australia), New Caledonia and New Zealand. The species are known as heaths or Australian heaths.
Epacris impressa Epacris impressa, also known as common heath, is a plant of the heath family, Ericaceae, that is native to southeast Australia (the states of Victoria, Tasmania, South Australia and New South Wales). French botanist Jacques Labillardière collected the species in 1793 and described it in 1805. Four forms have been identified, but no subspecies are recognised. Growing in heathland, shrubland or open forest, it is generally a small shrub around 0.5 to tall, with small stiff leaves. The red, pink or white tube-like flowers appear from late autumn to early spring. Honeyeaters, particularly the eastern spinebill, feed upon the nectar of the flowers. It regenerates after bushfire by seed or by resprouting.