Belfast Botanic Gardens Tree Archive
This is one of a series of short articles about trees in the Belfast Botanic Gardens compiled by the Friends group. The tree tag number relates to the small aluminium discs, usually fixed on the tree trunk, 2 to 3m above ground level.
Carpinus betulus 'asplenifolia'
cut-leaf common Hornbeam
This tree was described previously on this website as Carpinus orientalis
. Examination of the fruit and particularly the bracts around the fruit (see photo below), make it clear that this is a form of the Common hornbeam.
The bracts also clearly distinguish it from the hop hornbeam
. The fruit bracts of C. orientalis
are not three-lobed. It seems most likely that that this is the form of common hornbeam called 'asplenifolia'. The other cut-leaved hornbeams C. betulus
'incisa" and C. betulus
'quercifolia' both have smaller leaves than the species. It is a very rare form not listed in most reference sources. It is described in the RHS dictionary of Gardening, but is not mentioned in the Hillier Manual of Trees and Shrubs. It is an attractive tree with some amazing examples of self-grafted branches. This is quite common in some species and is called inosculation - Wikipedia has a description and lots of photos. The Botanic Gardens tree produces very good autumn colours. It was nominated for a regional tree of the year in 2019.
Photos taken in Belfast Botanic Gardens in 2007 and 2019. Copyright: Friends of Belfast Botanic Gardens.
Click here to view the rest of the tree archive