Ulmus japonica - Japanese elm

The naturally very variable Japanese elm is one of the key species in the fight against Dutch elm disease (Ophiostoma ulmi), which has destroyed a large part of the elm populations of central and western Europe, as well as those of North America. Species from Asia seem to have the best resistance.

The Japanese elm can grow in the wild to 30 metres, with a broad crown, but there are also shrubby forms. The leaves are 8-12 cm, and the branches of some provenances have corky wings which make them attractive even in winter.

Ulmus laevis - Russian, fluttering, or European white elm

The strong-growing Russian elm, despite the common name, is also native to Finland though it is seldom planted and little known nowadays. In the province of Häme it is a typical species of the shores of Lake Vanajavesi, in rich forest soils achieving a diameter of over a metre, given a few centuries. In the past the leathery bark was used where tough bindings were needed, and the wood itself for wooden harness bows.