echinocactus cactus close-up. thick yellow spines of a needle on geometric ribs, a beautiful dangerous plant. echinocactus cactus

ball beautiful boreocactinae breeding cactus cereeae cereoideae closeup dangerous desert echinocactus effect elegant geometric green greenery grow growing growth halo juicy mexico minimal mojave natural nature needle plant radial rib ribs round sharp spherical spine spines succulent texture textured thick trunk usa vital vitality wild yellow