Life … Plants Vascular Plants Dicots Pinks, Cactuses, and Allies Cacti Trichocereeae Oreocereus genus Oreocereus Oreocereus Field notes Children Oreocereus pseudofossulatus Old-man-of-the-Andes Oreocereus trollii Oreocereus leucotrichus Oreocereus hempelianus old-man-of-the-Andes Close