Imperial Star

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Cynara cardunculus L. Cardoon · Vegetables · bred by The Regents of the University of California

also searched as: империал стар

Variety description

10 August 2026

The variety has an open growth habit, with mature plant height ranging from 90 to 150 cm. Inflorescences have a round or slightly oblong shape, with a diameter of 7–10 cm. The color of the heads is bright green, sometimes with a slight purple tinge at the base. A characteristic feature is the absence of spines or their minimal presence.

When grown as transplants, the first harvest can be expected 150–160 days after sowing. The variety is distinguished by the tender, fleshy texture of the inflorescences and slow bud opening during maturation. The plant exhibits high adaptability to various climatic conditions and is intended primarily for the fresh market.

Sources7

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Countries of admission

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.

IS FI NO SE EE IE GB DK LV LT NL DE PL BY PT ES FR BE CZ SK UA RU LU CH AT HU MD IT SI HR RS RO MT GR BG CY

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Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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

Parties

Breeder: The Regents of the University of California 301 Developed the variety
Applicant: YUMA SEED PRODUCTION 1 Submitted the application to the register
Rights holder: YUMA SEED PRODUCTION 1 Holds the rights to the variety
Maintainer: VARIOS CONSERVADORES 1 610 Responsible for variety maintenance

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

QZ European Union Active

№ 268764

Registration

9 December 2015
ES Spain Active

№ 19980080

Application

29 April 1998

Registration

27 September 2002
AR Argentina Active

№ 023959

Application

22 August 2024

Registration

6 March 2025

Registry	Number	Application	Registration	Terminated	Status
QZ European Union	268764	—	9 December 2015	—	Active
ES Spain	19980080	29 April 1998	27 September 2002	—	Active
AR Argentina	023959	22 August 2024	6 March 2025	—	Active

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 № 9000179

Protection expired

Application filed 23 May 1990
Registered 31 January 1991
Entry closed 31 January 2009

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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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

Breeder

The Regents of the University of California

breeder code UC-IS-89 (86-024)

All 301 varieties of company

Registry records

Total records: 5
Jurisdictions shown: 2
Not yet disclosed: 3
First registration: 1991

Same species