Ranunculales

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iRanunculales
Ranunculus repens
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Ranunculales
Dumortier
families

See text

Ranunculales is an order of flowering plants. Of necessity it contains the family Ranunculaceae, the buttercup family.

The APG system (1998) and the APG II system (2003) both recognize the order and place it among the basal eudicots, not assigned to a further clade. These systems use this circumscription:

Note: "+ ..." = optional segregrate family, that may be split off from the preceding family.

Under this definition, well-known members of Ranunculales include buttercups, clematis, columbines, delphiniums, and poppies.

The Cronquist system (1981) also recognised the order, but placed it in the subclass Magnoliidae, in class Magnoliopsida [= dicotyledons]. It used this circumscription:

  • order Ranunculales
    family Ranunculaceae
    family Circaeasteraceae
    family Berberidaceae
    family Sargentodoxaceae
    family Lardizabalaceae
    family Menispermaceae
    family Coriariaceae
    family Sabiaceae

In the Cronquist system the Papaveraceae and Fumariaceae (including the plants in the optional family Pteridophyllaceae) were treated as a separate order Papaverales, placed in this same subclass Magnoliidae.

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