The San Lorenzo variety, also known by the designation npu, is officially classified under the species Populus deltoides W. Bartram ex Marshall. In technical documentation and analytical reports, the variety is associated with names such as Viriato 2, Benavente, and Non Plus Ultra.
Publications containing characteristics of height, maturity group, indicators of disease resistance, or wood quality for this clone are not presented in open sources. The variety is mentioned primarily in legal registers and lists for the protection of breeders' rights.
Sources4
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Countries of admission
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.
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data for which we do not publish: their registry licenses have not yet been verified.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.
Variety in registries
Regions of admission, rights holders, and status of plant breeders' rights
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
Populus deltoidesW. Bartram ex Marshall· Eastern cottonwood
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Institut National de Recherche en Sciences et Technologies pour l’Environnement et l’Agriculture (IRSTEA), Institut Technologique FCBA
Populus deltoidesW. Bartram ex Marshall· Eastern cottonwood
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Institut National de Recherche en Sciences et Technologies pour l’Environnement et l’Agriculture (IRSTEA), Institut Technologique FCBA