Ceratocephala
bur buttercup, hornseed buttercup, curveseed butterwort
1 species
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Ceratocephala testiculatahornseed buttercup
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains.
Habitat: Disturbed soil in sagebrush deserts and plains.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Annual