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[[Image:Daisy1web.jpg|right|thumb|This ''[[Osteospermum]]'' 'Pink Whirls' is a successful cultivar.]]
[[Image:Daisy1web.jpg|right|thumb|This ''[[Osteospermum]]'' 'Pink Whirls' is a successful cultivar.]]
:''Hydrangea macrophylla'' (Hortensia Group) 'Ayesha'
:''Hydrangea macrophylla'' (Hortensia Group) 'Ayesha'
Some cultivars and Cultivar Groups are so well "fixed" or established that they "come true from seed", meaning that the plants from a seed sowing (rather than vegetatively propagated) will show very little variation. In the past, such plants were often called by the terms "variety", "selection" or "strain"; these terms (particularly "variety", which has a very different botanical meaning â see below) are best avoided with cultivated plants. Normally, however, plants grown from seed taken from a cultivar can be very variable and such seeds or seedling plants should ''never'' be labelled with, or sold under, the parent cultivar's name (See [http://www.rhs.org.uk/learning/publications/plantsman/0605/opinion.asp] an article by [[Tony Lord (photographer)|Tony Lord]] of ''The [[Royal Horticultural Society|RHS]] Plant Finder'').
Some cultivars and Cultivar Groups are so well "fixed" or established that they "come true from seed", meaning that the plants from a seed sowing (rather than vegetatively propagated) will show very little variation. In the past, such plants were often called by the terms "variety", "selection" or "strain"; these terms (particularly "variety", which has a very different botanical meaning – see below) are best avoided with cultivated plants. Normally, however, plants grown from seed taken from a cultivar can be very variable and such seeds or seedling plants should ''never'' be labelled with, or sold under, the parent cultivar's name (See [http://www.rhs.org.uk/learning/publications/plantsman/0605/opinion.asp] an article by [[Tony Lord (photographer)|Tony Lord]] of ''The [[Royal Horticultural Society|RHS]] Plant Finder'').
==Trade designations and "selling names"==
==Trade designations and "selling names"==
