Ulmus, the true Elms. Pretty much any of the Elms that you come across will perform well as bonsai.
It is not always easy to settle on the exact species due to the fact that they hybridise so readily.
The common UK species are U. procera , english elm, U. carpinifolia, Smooth leaved elm, U. glabra, Scots or Wych elm. Several others classed as species are quite region specific although with cultivation comes the likelihood of planting in almost any area.
In any case they are all hardy and grow well in a wide range of conditions. They respond particularly well to most bonsai techniques, happy living in pots, react really well to pruning making branches quick to grow and ramify and consequently make creating the desired beautiful winter image of deciduous species just about as easy as it can be.
We have called this lovely shaped bonsai an English elm as it’s characteristics most match that species. At the base the trunk, which is 5 cm. in diam. Is starting show signs of age in the bark. The are surface roots which are 12 cm. across. Within the height of 55 cm. there have been developed a comprehensive arrangement of primary branching which spreads to 55 cm. It could be argued that some of the lower branches could do with a bit more girth but that should come in time. The overall silhouette is good with maybe a little shortening of back branches in order. It features the tiny leaves that this species can show when having been a bonsai for many years . One of the photos shows a close up of the characteristic winged corky bark that occurs on branches in aged trees. The nice Korean glazed ceramic oval measures 36x25x5 cm. A UK produced bonsai of decent quality but which can still be improved.