Rosales is an
order of
flowering plants. It is
sister to a
clade consisting of
Fagales and
Cucurbitales. It contains about 7700
species, distributed into about 260
genera. Rosales comprise nine
families, the
type family being the rose family,
Rosaceae. The largest of these families are Rosaceae (90/2500) and Urticaceae (54/2600). The order Rosales is divided into three clades that have never been assigned a
taxonomic rank. The
basal clade consists of the family Rosaceae; another clade consists of four families, including Rhamnaceae; and the third clade consists of the four
urticalean families.