Ulmus 'Planeroides'

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Ulmus 'Planeroides'

Overview
Ulmus 'Planeroides' is an elm cultivar described in 1875 by Carrière. It is named for its leaves, which were described as Planera-like, giving the cultivar its special name. The exact origin is unclear, with France noted as a possibility.

Description
The plant was noted to have leaves resembling those of Planera aquatica. This Planera-like foliage is the key feature of the cultivar.

History and origin
Carrière described the elm in the journal Revue horticole in 1875. Some experts later suggested it could be Ulmus carpinifolia. The name and identity have been debated, and it should not be confused with other plants once labeled under Planera or related mixes of elm and Planera names.

Pests and diseases
Like many field elms, unknown or uncertain clones of Ulmus 'Planeroides' would be expected to be susceptible to Dutch elm disease.

Cultivation
No living specimens are confirmed to survive today.

Putative specimen
There is a report of a pruned elm with Planera-like leaves standing on Stanford Avenue in Brighton, England, that has been associated with the Planeroides name. Several photos of this tree exist.

References
- Carrière, 1875, Revue horticole
- Green, 1964, Registration of cultivar names in Ulmus
- Späth Baumschulenweg Katalog, 1903
- Gerald Wilkinson, Epitaph for the Elm, 1978
- Brighton and Sussex Tree Festival notes (2025) and related local references