Paragraph 1

The variety must be clearly distinguishable by one or more important F1characteristics which are capable of precise description from any other variety whose existence is a matter of common knowledge at the time of the application.

For the purposes of the foregoing sub-paragraph common knowledge may be established by reference to plant varieties already in cultivation or exploited for commercial purposes, or those included in a recognised commercial or botanical reference collection, or those of which there are precise descriptions in any publication.