endemic cactus from argentina, bolivia and paraguay, close-up of a cereus sp. bluish-green color with hard and short spines

arid background barb bloom blossom botanical botany cacti cactus cereus closeup cordobensis decorative desert detail dry exotic flora floral flower focus fruit garden green grow growing growth landscape murcia nature nobody opuntia outdoors plant prick prickly red rock seasonal sharp spain spike spine succulent summer thorn thorns tree white