Ulmus glabra 'Firma'
From Wikipedia, the free encyclopedia
(Redirected from Ulmus 'Firma')
The tree was described as having leaves like the species but firmer in texture.
No specimens are known to survive.
- Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 41–80. Retrieved 16 February 2017.