Cultivars
'Aspleniifolia'
This tree has leaves, which are serrated and have deep lobes.

'Columnaris'
This slow growing compact tree has dense foliage, becoming broader with age, maintaining a central leader.

'Fastigiata', syn.'Pyramidalis'
This tree to 15m (50ft) tall and 12m (40ft) wide and forms a narrow upright habit that broadens with age.

'Frans Fontaine'
This tree to 15m (50ft) tall and 6m (20ft) wide, forms a narrow upright habit that is maintained when mature.