Copiapoa is a genus of flowering plants in the cactus family Cactaceae, from the dry coastal deserts, particularly the Atacama Desert, of northern Chile. Description It comprises 32 morphologically defined species and 5 heterotypic subspecies. The species in the genus Copiapoa forms dense cushions of hundreds of large individual plants or produce only solitary plants. The shoots are spherical or elongated-cylindrical. The spines, which are usually present, are variably shaped. On the apex, the species are usually densely woolly-haired. The ribs are clearly developed. These species vary in form from spherical to slightly columnar and in color from a brownish to blue-green body. They have warty ribs and spiny areoles, and they usually produce tubular yellow flowers which grow from woolly crowns on the apex in summer. They are bell- to funnel-shaped and open during the day. The short, circular pericarp is glabrous. The flower tube is short and broad. The small, smooth fruits contain large, shiny black seeds. Taxonomy Pilocopiapoa F.Ritter has been brought into synonymy with this genus. Some authorities also include here the genus Blossfeldia. Species Species of the genus Copiapoa according to Plants of the World Online separated according to sections. See also Copiapó (the largest city of the Atacama region) Pan de Azúcar National Park References External links From Caldera to Copiapo, a collection of images of various species Cactuspedia Copiapoa CactiGuide Copiapoa Cactoideae genera Cacti of South America Endemic flora of Chile Flora of northern Chile Atacama Desert Cactoideae