ulmi

Ulmi refers to a genus of trees belonging to the family Ulmaceae. These trees are commonly known as elms. The genus Ulmus is native to the temperate Northern Hemisphere, with species found in Europe, Asia, and North America. Elms are characterized by their deciduous nature, meaning they shed their leaves annually. They typically have a symmetrical, vase-like shape, although this can vary depending on the species and environmental conditions. The leaves are usually serrated and arranged alternately on the branches. Elm flowers are typically small and inconspicuous, appearing in early spring before the leaves emerge. They are wind-pollinated. The fruit is a samara, a small, papery wing that aids in wind dispersal.

Many elm species are known for their hard, durable wood, which has been used historically for furniture, construction, and boat building. However, elm populations worldwide have been severely impacted by Dutch elm disease, a devastating fungal pathogen spread by elm bark beetles. This disease has led to the decline of many large, mature elm trees in urban and rural landscapes. Efforts to conserve and restore elm populations are ongoing, with research focusing on disease-resistant varieties and silvicultural practices. Notable species include the American elm (Ulmus americana), the European elm (Ulmus glabra), and the Siberian elm (Ulmus pumila).