Cistus, with its many hybrids and cultivars, is commonly encountered as a garden flower. The common name rockrose is applied to the species, a name also shared by the related genera Halimium, Helianthemum and Tuberaria, all in the family Cistaceae. The common name gum cistus is applied to resin-bearing species, especially C. ladanifer.
Quasars are part of a class of objects known as active galactic nuclei (AGN). Other classes include Seyfert galaxies and blazars. All three require supermassive black holes to power them.
The llama is a slender-bodied animal with long legs, a long neck, a short tail, a small head, and large, pointed ears. It is a South American member of the camel family, Camelidae (order Artiodactyla), and is closely related to the alpaca, guanaco, and vicuna. These four animals are known collectively as lamoids.