Western Blue Flag, Iris missouriensis, is found is moist, open, montane meadows in Southern California. This one was in a meadow adjacent to the Timberline lodge in Big Bear, California. I wandered over to the meadow to investigate the flowers while checking into the lodge and just caught the tail end of what was probably a glorious blooming of a field full of Iris. I could still see the seed pods the dried flowers on most of the plants and the last few still had flowers.
