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Ranunculus acris is a species of flowering plant in the family Ranunculaceae, and is one of the more common buttercups across Europe and temperate Eurasia. Common names include meadow buttercup , [ 1 ] tall buttercup , [ 2 ] common buttercup and giant buttercup .
Members of the genus include the buttercups, spearworts and water crowfoots. Selected species. A. Species & synonyms Common names Native range Illustration ...
Members of the genus are known as buttercups, spearworts and water crowfoots. The genus is distributed worldwide, primarily in temperate and montane regions. [ 2 ] The familiar and widespread buttercup of gardens throughout Northern Europe (and introduced elsewhere) is the creeping buttercup Ranunculus repens , which has extremely tough and ...
Leefructus mirus shows fully developed leaves; stem and flower that are very similar in structure to those of the modern buttercups. The fossil is dated to 125 Mya (million years old) and it not only proves that Ranunculales is an ancient group of eudicots but demonstrates that the whole angiosperm clade may be older than expected.
This plant, like other buttercups, contains the toxic glycoside ranunculin, which gives it a bitter, acid taste, so cases of poisoning in humans are rare. [9] It is also avoided by livestock when fresh, but when the plant dries the toxin is lost, so hay containing the plant is safe for animal consumption. [ 3 ]
Like most buttercups, Ranunculus repens is poisonous, although these poisons are lost when dried with hay. The taste of buttercups is acrid, so cattle avoid eating them. The plants then take advantage of the cropped ground around them to spread their stolons. Creeping buttercup also is spread through the transportation of hay.
Ranunculus flabellaris is a species of flowering plant in the buttercup genus, Ranunculus, known by the common name yellow water buttercup or the yellow water crowfoot. [ 1 ] [ 2 ] It is native to much of North America , including the southern half of Canada and most of the United States .
The genus name Ranunculus is from the Latin, meaning "little frog" and refers to the preference many buttercups have for wet habitats. The specific epithet hispidus is from Latin, meaning "densely hairy".