USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

Aquatic and Wetland Vascular Plants of the Northern Great Plains

9. Ranunculaceae, the Buttercup Family

4. Ranunculus L. -- Buttercup, crowfoot

2. Ranunculus cymbalaria Pursh -- Seaside buttercup

Low, extensively stoloniferous perennial, often forming dense mats, 3-15(25) cm tall, glabrous or sparsely pubescent mainly on the scapes and petioles. Leaves all basal, the blades ovate to round or reniform, cordate or truncate at the base, 5-22(40) mm long, 4-20(35) mm wide, crenate to shallowly lobed, often with 3 prominent lobes at the tip. Scapes surpassing the leaves, simple or sparingly branched with 1-several small yellow flowers. Sepals 5, greenish-yellow, spreading, 3-5 mm long, deciduous; petals usually 5(-12), yellow, turning whitish with age, 3-8 mm long; stamens usually 10-30; receptacle 2-4 mm long in flower, 4-10 mm long in fruit, pubescent. Achenes usually 40-150 in a cylindric head 3-10(15) mm long, 3-4(6) mm thick; achene body turgid, cuneate-oblong, longitudinally nerved, ca. 1.5 mm long; beak triangular, straight, 0.3 mm long. Jun--Oct. Wet meadows, stream banks, shores, ditches and seepage areas, often where brackish; very common; (Throughout most of N.Amer. and S.Amer.; also Eurasia).
GIF-Ranunculus cymbalaria
A matlike colony of Ranunculus cymbalaria. Plants reproduce freely by stolons.
GIF- Distribution Map

Map key

Previous Species -- Ranunculus cardiophyllus Hook.
Return to Family -- Ranunculaceae - The Buttercup Family
Next Species -- Ranunculus flabellaris Raf. -- Yellow water-crowfoot

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 06:46:17 EST
Sioux Falls, SD [sdww54]