different small cereus cacti in flower pots on blue background

background blue botanic botanical botany cactaceae cacti cactus cereus closeup column cylindrical decoration decorative desert different exotic fencepost flower gardening geometrizans green growing growth hedge house houseplant indoor light marginatocereus marginatus mexican myrtillocactus natural ornamental pachycereus pilosocereus plant plantae pot pots potted prickly shaped small spiked spines stems succulent thorn thorns tropical