yellow flowering coryphantha sea urchin cactus in a container

background ball beautiful black bloom botanical botany cactaceae cacti cactus closeup columnar copy coryphantha cylindrical dangerous decoration diameter eight flora flower flowering flowers garden gardening hat hobby horticulture irridescent isolated miniature natural nature nursery one pallida patio plant potted radians reduncispina rhinoceros sea sharp shimmering space specimen spines stock succulent thorns top two urchin yellow