"Cacti, Mammillaria species at the front, Golden Barrel Cacti or Mother-in-Law's Cushions (Echinocactus grusonii) at the back"

"Golden Barrel Cactus (Echinocactus grusonii), in a cactus nursery, Worcester, Western Cape, South Africa, Africa"

"Golden Barrel Cactus or Mother-in-Law's Cushion (Echinocactus grusonii), Botanical Garden, Erlangen, Middle Franconia, Bavaria, Germany, Europe"

"Giant Barrel Cactuses (Echinocactus platyacanthus), native to Mexico, Lanzarote, Canary Islands, Spain, Europe"

"Giant Barrel Cactus (Echinocactus platyacanthus), native to Mexico"

"Giant Barrel Cactuses (Echinocactus platyacanthus) in the Jardin de Cactus, by Cesar Manrique, near Guatiza, Lanzarote, Canary Islands, Spain, Europe"

Golden barrel cacti (Echinocactus grusonii) and columnar cacti, Jardin Botánico Viera y Clavijo, Gran Canaria, Canary Islands, Spain, Europe

Goldkugelkaktus (Echinocactus grusonii), Stacheln, Detail, Gran Canaria, Kanarische Inseln, Spanien, Europa

"Cottontop Barrel Cactus (Echinocactus polycephalus), Death Valley National Park, California, USA"

"Cottontop Barrel Cactus (Echinocactus polycephalus), Death Valley National Park, California, USA"

Goldkugelkaktus (Echinocactus grusonii), Stacheln, Detail, Gran Canaria, Kanarische Inseln, Spanien, Europa

"Giant Barrel Cactus (Echinocactus platyacanthus), native to Mexico, Lanzarote, Canary Islands, Spain, Europe"

Golden Barrel Cactuses (Echinocactus grusonii)