Northern Prairie Wildlife Research Center
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).
Previous Species -- Ranunculus cardiophyllus
Return to Family -- Ranunculaceae -
The Buttercup Family
Next Species -- Ranunculus flabellaris Raf.
-- Yellow water-crowfoot