Frank Jr.
ActiveAcer rubrum L. · Red maple
Warren Keith S.|Gresham, OR, US
WW Warren
ActiveAcer rubrum L. Red maple · Ornamentals · bred by Warren Keith S.
also searched as: вв варрен
Variety description
10 August 2026
The tree reaches a height of 12–15 meters and possesses a narrow columnar shape with a pronounced central leader and symmetrical branching. The leaves are of medium size, dark green in the summer period, and have long pointed tips.
The variety possesses good winter hardiness (USDA zones 5–9) and resistance to anthracnose. Thanks to its shape and resistance to urban conditions, the tree is suitable for the landscaping of parks, streets, and confined spaces.
Sources5
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Variety in registries Regions of admission, rights holders, and status of plant breeders' rights
Parties
- Breeder
- Warren Keith S. 17 Developed the variety
- Applicant
- Warren Keith S. 17 Submitted the application to the register
- Rights holder
- J. Frank Schmidt & Son Co. 30 Holds the rights to the variety
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
United States of America
№ 18664176
Active
- Application filed 14 May 2024
- Registered 11 March 2025
- Currently active indefinite in the register
More 1 record 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
Other varieties: Red maple
JFS KW78
ActiveAcer rubrum L. · Red maple
Warren Keith S.