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 BCC black tree maintenance tags, usually fixed on the tree trunk, 2 to 3m above ground level.
Quercus x crenata
Black tag 80
Synonyms are Quercus x hispanica 'Lucombeana' and Quercus lucombeana.
Quercus x crenata is a hybrid between Q. suber (the cork oak)
and Q. cerris (the Turkey oak). This cross has occurred several times. The two examples in commerce are the Fulham oak and the Lucombe oak. Both are semi-evergreen, often shedding some leaves in January or February.
The Lucombe oak is said to be distinguished by the fine points on the lobes of the leaves and by the 'wiskers' surrounding the terminal buds of its branches (photo below)
The Lucombe oak was discovered by nursery owner William Lucombe in 1762. True Lucombe oaks are clones of this original hybrid, but other similar hybrids are sold as Lucombe oaks.
We don't know the provenance of the Botanic Gardens specimen nor whether it a decendant of the true Lucombe oak or a similar hybrid. William Lucombe felled the original tree with the intention that the wood be used for his coffin. However he lived to 102, by which time his coffin planks, stored under his bed, had rotted.
Fine examples of the Lucombe oak may be seen in Kew and Powis Castle.
Quercus x crenata in Belfast Botanic Gardens
Branch of Quercus x crenata
Tip of a leaf lobe Quercus x crenata
Terminal bud of branch with 'wiskers' Quercus x crenata
Upper surface of leaf Quercus x crenata
Lower surface of leaf Quercus x crenata
Photos taken in Belfast Botanic Gardens in 2023. Copyright: Friends of Belfast Botanic