[1] Facilitating other invasives. Glossy or alder buckthorn is on the MDA Restricted noxious weeds list in Minnesota. Birds eat its red fruits and disperse its seeds. Invasive Species - (Rhamnus frangula or Frangula alnus) Glossy buckthorn is a shrub or small tree with simple, shiny leaves and pea-sized red to purple fruit. Certain cultivars have narrow almost fern-like leaves. The leaves are oval, smooth, dark, glossy, with toothless edges; 8-9 pair of leaf veins. Description. Glossy buckthorn, the other buckthorn invader, was sold under several names: Columnar, Tall hedge, or Fern-leaf buckthorn. Introduced to North America as ornamental shrub, often planted in hedgerows. Glossy buckthorn leaves alternate on stems, If you think it looks like buckthorn, it probably is. Fruits contain 3 to 4 seeds that are viable for 2 to 3 years in the soil. When it was initially introduced it was used as a hedge and to create wildlife habitat. "European or Common Buckthorn and Glossy Buckthorn or Alder Buckthorn are listed as restricted noxious weeds in Minnesota. It lacks a thorn at the tip of its branches and its terminal buds are not covered by scales. While buckthorns have long, very sharp spikes that can be extremely painful, chokeberry bushes are thornless. Most often it grows in a large shrub growth form, having a few to several stems from the base. Glossy buckthorn leaves – 5457314, Leslie J. Mehrhoff, University of Connecticut. Glossy buckthorn leaves in alternate arrangement- 1539069, James H. Miller, USDA Forest Service Information Credits. [9] When it comes to the Common Buckthorn, it has been able to spread in Canada and the U.S. so well because of some of the qualities that these plants have. It is closely related to Common buckthorn (Rhamnus cathartica), but has alternate leaves. Common buckthorn and glossy buckthorn are considered invasive species in the United States and by many local jurisdictions and state governments, including Minnesota and Wisconsin. Common buckthorn flowers have 4 petals and glossy buckthorn flowers have 5 petals. The flowers are inconspicuous, pale yellow in color, and occur in clusters in the leaf axis. Glossy Buckthorn or Alder Buckthorn is known almost exclusively for its two cultivar forms, prized for their ultra fine-textured foliage ('Asplenifolia', or Fernleaf Buckthorn) or usage as a tall hedge that does not need shearing ('Columnaris', or Tallhedge Buckthorn). Glossy buckthorn is a large shrub or small tree that can grow to heights of 25 feet. Foliage The dark green leaves are shiny, alternate (sometime opposite) and simple with prominent venation. Chokeberry leaves come to a point with a serrated edge, and they’ll often be turning a rich red color as the berries ripen. Glossy buckthorn (Frangula alnus) is native to Eurasia. Appearance: Tall understory shrub or small tree, grows up to 20' high, has a spreading loosely branched crown, often multiple stems at the base. Glossy buckthorn blooms … Flowering Dates: Common: May-June; Glossy: May to first frost. its leaves late into the fall, creating dense shade that helps it to out-compete many native plants. Brown bark with elongate silvery corky projections (Caution: native plums or cherries have a similar bark).Branches: Buds and leaves are alternate. General Appearance. Leaves and Berries. The species arrived in Minnesota from Europe in the 1850’s and was planted as an ornamental plant typically used in hedges. Most dogwood shrubs (Swida spp.) Glossy buckthorn has mostly alternate leaves, 2–3” long, with entire margins, a glossy … Glossy buckthorn is 10-18 feet tall, has an oval form and stands upright. Glossy buckthorn, native to Europe and Asia, is a highly invasive perennial understory shrub or a small tree that can reach heights of 15 - 20 feet and 10 inches in diameter. More often than not, a lot of hard work is involved. It is native to most parts of Europe except the extreme north, and part of the Mediterranean region. Buckthorns usually grow 2 to 3 m tall. Since its introduction, it has spread aggressively across most of the northeast and upper Midwest and has become a serious threat to the degra…
2020 glossy buckthorn leaf