close up astrophytum asterias cactus on black pot isolate on white background.

agriculture asterias astrophytum background backgroundca backgroundcactus beautiful black botanical botany cacti cactus close closeup cycle decorate decoration design dollar dry flower fresh garden green grow growth hobby houseplant idea isolate isolated natural nature pattern peyote plant pot prickly round sand sea seed sharp spines sprout star sting succulent summer thorn thorny tropical urchin white