 Subspecies "lapidensis" grows in sandy soils between Sandstone and Meeketharra in the Murchison biogeographic region.Subspecies "megacalyx" grows in rocky and sandy clay soil between the Murchison Settlement and Meekatharra in the Murchison biogeographic region.Subspecies "simulans" and "lapidensis" are classified as "not threatened" but subspecies "megacalyx" is classified as "Priority Three" by the Western Australian Government Department of Parks and Wildlife meaning that it is poorly known and known from only a few locations but is not under imminent threat.