flower of the xique xique cactus pilosocereus gounellei - piaui state, northeast brazil

flower xique cactus pilosocereus gounellei piaui state northeast brazil flora environment caryophyllales cactaceae polygonus oeiras sertao brazilian caatinga cerrado biome hinterland backcountry interior nature green plant background desert summer closeup dry natural white beautiful garden cacti landscape serene travel evening semiarid sandy sunlight outdoor tree sky northeastern vegetation