Growing from a crevice on a steep sandstone slope is no problem for Heterolepis aliena. The plant hasn’t earned the common name of rock daisy for nothing.
The specific name, aliena, suggests that the plant is a stranger. This might be taken to mean retiring into aloofness, supported by the plant’s common positioning among rocks. There’s probably a more mundane explanation for such a name. In fact, the typical position of this plant in habitat may be a survival feature; just the place for avoiding damage caused by itinerant browsers and hooligans, or even the occasional passing veld fire.