Hunting at Roadside IV #7

Yellow Flag (Iris pseudacorus) is a striking aquatic perennial known for its vibrant presence. The water-loving yellow iris can be found along the margins of waterways and ponds, and in wet woodlands, fens and salt marshes. 

Yellow Flag Iris can spread rapidly and become invasive if not managed properly. It may easily take over a small pond. It has even become a problem in the wild in some areas where it has escaped and spread from cultivated varieties. The dense mats can also block water flow in irrigation and flood control ditches.