Hamamelidales is an order of formerly accepted in a number of systems of plant taxonomy, including the Cronquist system published in 1968 and 1988. The order is not currently accepted in the Angiosperm Phylogeny Group III system of plant taxonomy, the most widely accepted system as molecular systematic studies have suggested that these families are not closely related to each other.[ Additional studies of the chloroplast genome have since confirmed that the families moved into the Saxifragales are closely related.]
The Cronquist system (1981) included the order in subclass Hamamelidae with the :
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