Cultivar Group

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Under the ICNCP, a cultivar Group is a gathering of cultivars. There may be several reasons to designate a group, for example a group of yellow-flowering cultivars, a group of cultivars with variegated leaves, a group of cultivars resistant to a particular disease, etc. A cultivar may belong to more than one Group (it may be yellow-flowering, with variegated leaves and resistant to the disease at one and the same time).

ICNCP Art 9 Ex 10: "Solanum tuberosum 'Desiree' may be designated part of a Maincrop Group and a Redskin Group since both such designations may be practical to buyers of potatoes ..."

Another reason for designating a group is when a wellknown plant loses its taxonomic status (e.g. it ceases to be a "good" species or subspecies and becomes a synonym). Its botanical epithet may become a "Group epithet". For example:

Tetradium hupehense is sometimes regarded as being part of
Tetradium daniellii and the plants in question may be referred to as
Tetradium daniellii Hupehense Group.

For the technical details of how to write a group name see cultivar.

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