single exquisite yellow sea-urchin cactus flower among vicious spines

background ball beautiful beauty bizarre botany cactaceae cacti cactus collection collector container contradiction contrast copy cornifera coryphantha cottony dangerous dark exquisite flower fuzz fuzzy garden gardening hairs harsh harshness hobby hooked horticulture irridescent nature one patio petals plant radians rare rhinoceros seaurchin sharp sharpness shimmering single softness space spines ssp succulent surrounded thorns ugly unique unusual vicious yellow