tropical plant cactus cactaceae, cereus hildmannianus peruvian apple greenhouse

tropical plant cactus cactaceae cereus hildmannianus peruvian apple greenhouse green botany succulent botanical sharp nature monstrosus peruvianus cacti thorny flora decoration thorn background desert garden summer natural south prickly repandus cadushi monstrose peru spines uruguayanus closeup monstrous growth houseplant gardening large needles needle flower color pot giant spine indoor spikes leaf form