This is the Winterking Hawthorn, or Crataegus viridis 'Winterking'. This is a hardy deciduous tree known for its year-round ornamental appeal. In spring, it displays clusters of fragrant white flowers that attract a variety of pollinators. As the season progresses, the tree develops glossy green foliage, which turns a vibrant yellow in the fall. Come winter, the wide vase-shaped form with angular branches becomes a noticeable feature, especially as it's adorned with bright red berries that persist through the cold months. The Winterking Hawthorn typically reaches a mature height of 20 to 35 feet and a width of 20 to 25 feet, making it an excellent choice for landscapes seeking multi-season interest.