top view of gymnocalycium saglionis cactus, ornamental exotic plant with curvy spines grown as houseplant

background botanical botany cactaceae cacti cactoideae cactus close closeup collection darjeeling decorative desert flora flower garden green gymnocalycium herb home houseplant india lanka nature ornamental pflanzii plant pleasure prickly rare saglionis science seasonal spine spines spiny spring succulent summer survival takdah texture thorn thorns tilcarense variety vegetation