Ulmus L. Elm · Ornamentals · bred by Wisconsin Alumni Research Foundation (WARF)
also searched as: ребона
10 August 2026
The variety is a fast-growing tree with a height of 15–20 meters and a vertical trunk. Leaves are glossy, dark green, light-colored in spring, and turn yellow in autumn. Compared to the 'New Horizon' variety, the tree requires less formative pruning due to the straighter growth of the main trunk.
The tree possesses complex resistance: to Dutch elm disease (graphiosis), Verticillium wilt, wind, road salt, drought, short-term flooding, and compacted soils. Recommended for landscaping streets, alleys, parks, creating shelterbelts, and planting in coastal zones.
The variety is part of the Resista series of resistant elms. To maintain varietal characteristics, vegetative propagation is exclusively recommended, as resistance may not be transmitted through the seed method.
2 jurisdictions
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
More 2 records protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
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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
FAGNANI ALBERTO / FERRINI FABIO / MITTEMPERGHER LORENZO
Ulmus L. · Elm
Raymond P. Guries
Ulmus L. · Elm
Nearby in the species list Fiorente, Freja, Klondike, Loke, Morfeo, Nanguen, New Horizon, Odin, Plinio, Rebella, Recerta, Regal, Repura, Reseda, Revera, Reverti, San Zanobi, Sapporo Autumn Gold, Schwedensaeule, Tyr