10 August 2026
The variety is a hybrid of Siberian elm (Ulmus pumila) and field elm (Ulmus minor). A mature tree reaches a height of 18–25 meters, forming a pyramidal or narrow columnar crown with a straight trunk and moderate lateral branching. The foliage is bright green, glossy, and persists on the branches until late autumn.
The plant is distinguished by high resistance to Dutch elm disease, drought, strong winds, short-term flooding, and air pollution. It has a hardiness zone of 4B–8B. Due to its rapid growth and straight trunk, it is promising for landscaping public spaces and forestry.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Ulmus L. · Elm
SMALLEY| Prof. E.B. Smalley c/o University of Wisconsin/Madison
Ulmus L. · Elm
Smalley, Eugene|Cottage Grove, WI / Lester, Donald T.|Vancouver, Canada
Ulmus L. · Elm
Smalley, Eugene B.|Madison, WI / Lester, Donald T.|Lake Oswego, OR
Ulmus L. · Elm
Wisconsin Alumni Research Foundation (WARF)
Ulmus L. · Elm
Nearby in the species list Klondike, Loke, Morfeo, Nanguen, New Horizon, Odin, Plinio, Rebella, Rebona, Recerta, Regal, Repura, Reseda, Revera, Reverti, San Zanobi, Sapporo Autumn Gold, Schwedensaeule, Tyr, Ulmus Arno