strombocactus disciformis - blooming cactus with white flower and yellow stamens from botanical collection

blooming cactus botanical collection succulent cacti cactaceae eudicots caryophyllales cactoideae cacteae wildlife flora plant desert spines arid natural vegetation hot dry spine prickly hardy green floral botany pot wild background echinocactus pediocactus ariocarpus disciformis strombocactus pachycereeae closeup grow picturecactus succulents species of corregidorae arizona bloom flower nature blossom