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How is Rosales related to the Rosid I group of core eudicots?
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Rosales
Red garden roses (Rosa hybrid). Whereas wild roses have only five petals, most hybrid varieties have been bred to produce numerous petals in a wide range of colours.
The order Rosales is classified within the Rosid group of the core eudicots. Within the Rosid lineage, the APG IV system further divides the group into two distinct clades: the fabids and the malvids.1
Rosales is positioned as one of the eight orders belonging to the fabids clade. This placement highlights its evolutionary relationship to other orders within the fabids, such as Fabales, which includes legumes that, like some members of Rosales, are capable of nitrogen fixation.12