Difference between revisions of "Ranunculus subg. Ceratocephala"
Amer. J. Bot. 27: 806. 1940.
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|name=Undefined subg. Ceratocephalus | |name=Undefined subg. Ceratocephalus | ||
|authority=Moench | |authority=Moench | ||
| + | |rank=subgenus | ||
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name=Ranunculus subg. Ceratocephala | name=Ranunculus subg. Ceratocephala | ||
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|authority=(Moench) L. D. Benson | |authority=(Moench) L. D. Benson | ||
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|genus=Ranunculus | |genus=Ranunculus | ||
|subgenus=Ranunculus subg. Ceratocephala | |subgenus=Ranunculus subg. Ceratocephala | ||
Latest revision as of 21:48, 5 November 2020
Plants villous. Stems erect, not bulbous-based, without bulbils. Roots basal, never tuberous. Leaves all basal, petiolate; blade 1-2×-dissected. Inflorescences terminal, solitary flowers. Flowers: sepals persistent in fruit, 5, 3-6 × 1-2 mm; petals 5, yellow; nectary scale attached basally, forming flap over nectary, glabrous, free margin entire; style present. Fruits achenes, 3-locular, lateral locules empty; achene body ellipsoid, about as wide as thick, not prolonged beyond seed; wall firm, smooth; margin low narrow ridge; beak much longer than achene body.
Distribution
North America, Pacific Islands, Australia, Europe, c, sw Asia, and n Africa.
Discussion
Species 10 (1 in the flora).
Ranunculus subg. Ceratocephalus is very different in aspect and fruit structure from other species of the genus; it is often treated as a distinct genus.