Sulfur paintbrush (Castilleja sulphurea), Waterton Lakes National Park, Alberta, Canada, North America

sulfur paintbrush castilleja sulphurea paintbrush wildflower flower bloom blossom plant yellow waterton lakes national park alberta canada photography colour image colour color image color vertical outdoors outside no people nobody no one no one day nature the natural world north america petal flower head focus on foreground foreground focus differential focus national park