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International Cultivar Registration Authority information


An International Cultivation Registration Authority (ICRA) is an organization responsible for ensuring that the names of plant cultivars and cultivar groups are defined and not duplicated.[1]

The ICRA system was established more 50 years ago, and operates under the International Code of Nomenclature for Cultivated Plants (ICNCP), which in turn works with the International Code of Nomenclature for algae, fungi, and plants. Its chief aim is to prevent duplicated uses of epithets for cultivars and cultivar groups within a defined denomination class (usually a genus), and to ensure that names are in accord with the latest edition of the ICNCP. Each name designation must be formally established by being published in hard copy, with a description in a dated publication.

The International Society for Horticultural Science appoints and monitors all ICRAs. At present it recognizes over 70 ICRAs, ranging from societies focused on a specific genus (such as Clivia, Quercus, or Saxifraga), through organizations with broader sets of interests (including the Singapore Botanic Gardens and the United States National Arboretum), to individuals.

  1. ^ "ISHS: International Cultivation and Naming Authorities (ICRAs)". Archived from the original on 26 November 2020. Retrieved 14 January 2021.

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International Cultivar Registration Authority

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Green was appointed International Cultivar Registration Authority for Lithops in 2013, and recognises over 100 registered cultivars. Since Lithops are...

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accepted by the International Carnivorous Plant Society, the International Cultivar Registration Authority for carnivorous plant cultivars. Published but...

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American Begonia Society

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horticultural and botanical interest, and is now the International Cultivar Registration Authority for the genus. In North America, penstemons are often...

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Hosta

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Datura

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edition of the International Code of Nomenclature for Cultivated Plants as the official International Cultivar Registration Authority for Datura. This...

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Highstead Foundation

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representative collection of the genus, for which it is also the International Cultivar Registration Authority. The Deciduous Azaleas collection, with 14 species of...

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International Society for Horticultural Science

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network of International Cultivar Registration Authorities, which are responsible for ensuring that the names of plant cultivars and cultivar groups are...

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Hedera

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Ivy Society is the International Cultivar Registration Authority for Hedera, and recognises over 400 registered cultivars. Much discussion has involved whether...

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Tradescantia

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Pansy

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International Code of Nomenclature for Cultivated Plants

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Cyclamen

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is the International Cultivar Registration Authority for Cyclamen excluding C. persicum, and currently recognises over 100 registered cultivars. Cyclamen...

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Lithops amicorum

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ISBN 978-0-902099-92-0. Retrieved 2023-07-05. Keith Green. "The International Cultivar Registration Authority Register and Checklist for the genus Lithops N.E.Br"...

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Willow

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hybrids and cultivars were until recently (2021) compiled by a working party of the UN FAO, the International Cultivar Registration Authority (ICRAs) for...

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