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Find out if ranunculus are perennials where you live, and how to protect the corms from winter cold.
Ranunculus / r æ ˈ n ʌ ŋ k j ʊ l ə s / [3] is a large genus of about 1750 species [1] [2] of flowering plants in the family Ranunculaceae. Members of the genus are known as buttercups , spearworts and water crowfoots .
The petiole is usually 4–25 cm long. The petals are 7–12 mm long and 2–4 mm wide. The nectary lobes are elliptical or semicircular. It usually has 12–36 achenes, 1.7–3.6 mm long, with the lateral faces irregularly wrinkled or pitted, or rarely smooth, and when mature often pale and thickened along the dorsal ridge. [2]
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 .
Ranunculus hispidus is a species of perennial flowering plant in the buttercup family, Ranunculaceae. It is commonly known as bristly buttercup [ 2 ] or hispid buttercup . [ 3 ] It is a small plant native to central and eastern North America that grows to a height up to 30 cm (1 ft) and has 5-petaled yellow flowers.
Ranunculus allenii grows to about 9 to 20 cm (3.5 to 8 in) in length, and is a perennial herb that is caespitose (grows in dense clumps). The roots are filiform (very thin in diameter), approximately 0.2 to 0.8 mm thick. Ranunculus allenii grows from a caudex (a thick short stem at ground level), with trichomes that
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