green cacti plants with yellow spikes

succulent prickly desert thorns botanical spikey flora spiky arid plant sharp barren succulents thorny prickles succulence cacti spines drought needle vegetation xerophyte spiked cactus dry aridness poky saguaro greenery prickle spinescent sting vegetative aqua vegetal pricklypear needlelike opuntia matricaria spikeyness spinosity spikiness ribes echinocactus pitaya cereus indica nopal cardon ferocactus ai generated