echinopsis spachiana, commonly known as the golden torch, torch (white)

echinopsis spachiana commonly known golden torch white cactus column species native south america lime-green column torch petal outdoor day succulent natural detail environment botanical ornamental argentinian eudicots petals america cactoideae garden plant closeup cactus echinopsis desert cactaceae close up exotic flora angiosperms close-up blooms flower caryophyllales filament filaments blossom tracheophytes nocturnal pistil floral stamens