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Which Myrtales family includes evening primroses and fireweed?

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common myrtle — Myrtales Common myrtle (*Myrtus communis*).

The family that includes evening primroses and fireweed is Onagraceae, which belongs to the Myrtales order.1

It is important to note that while the common name "primrose" is associated with this family, the Primulaceae family (which contains garden primroses) belongs to a completely different order, Ericales, and should not be confused with the evening primrose family. Within the Onagraceae family, the genus Oenothera represents the evening primroses, while the genus Epilobium includes fireweed (E. angustifolium).21