Cronquist, Arthur New York Botanical Garden, New York, New York.
Barkley, Theodore M. Division of Biology, Kansas State University, Manhattan, Kansas.
Last reviewed:August 2015
Show previous versions
- Links to Primary Literature
- Additional Readings
An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Magnoliidae of the class Magnoliopsida (dicotyledons). The order Ranunculales consists of 7 or 8 families and about 3200–4500 species, depending on the classification scheme. The vast majority of the species belong to three families: Ranunculaceae, with approximately 2000 species; Berberidaceae, with some 650 species; and Menispermaceae, with about 425 species. Many taxonomists now include the members of the order Papaverales [including the family Papaveraceae, containing the poppies (Papaver)] in an expanded Ranunculales. Within its subclass, the order Ranunculales is characterized by its mostly separate carpels, triaperturate pollen, herbaceous or only secondarily woody habit, frequently numerous stamens, generally more than two sepals, and lack of ethereal oil cells. Many members of the order produce benzylisoquinoline alkaloids or aporphine alkaloids, or both. Species of the Ranunculales are generally considered to be derived from the Magnoliales, a woody order in the same subclass. The barberry (Berberis), in the family Berberidaceae, and the buttercup (Ranunculus), columbine (Aquilegia; see illustration), larkspur (Delphinium), and windflower (Anemone), in the family Ranunculaceae, are familiar genera. See also: Alkaloid; Magnoliales; Magnoliidae; Magnoliophyta; Magnoliopsida; Papaverales; Plant kingdom; Poppy
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information