Research
Standard Specimens & Standard Portfolios
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A Standard is a pressed specimen or illustration prepared and deposited in a recognised herbarium to demonstrate the diagnostic characteristics of a cultivar.
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A Standard Portfolio includes the Standard and all the information relevant to the cultivar.
Searching the Standards Database
The database of Standards will allow you to search for information on Standard Specimens. The concept of Standards is of very recent introduction, so that for many cultivars, there is no entry. However, this is a rapidly expanding collection and the catalogue is updated frequently.
It is hoped that this site will eventually be linked with organizations elsewhere that also hold Standards.
Scientific and/or cultivar name:Enter one or more words from the scientific or cultivar name. More help.
The database was last updated April 2000.
How to send in a potential Standard
Acknowledgements
This information has been compiled by the Herbarium of the Royal Horticultural Society with assistance from the Database Administrators and the Information Technology Department.
The Standards web pages have been made possible through the work of BG-BASE Inc and the Royal Botanic Garden, Edinburgh.