Ranunculus sceleratus var. sceleratus

Linnaeus
Treatment appears in FNA Volume 3.

Leaf-blades lobed or parted, segments undivided or lobed, margins crenate. Achene faces with fine transverse wrinkles. 2n = 32.


Phenology: Flowering late winter–summer (Mar–Sep).
Habitat: Ponds, ditches and riverbanks
Elevation: 0-700 m

Distribution

V3 191-distribution-map.gif

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Sask., Ala., Ark., Calif., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Va., Wash., W.Va., Wis., Europe

Discussion

Ranunculus sceleratus var. sceleratus is a serious weed of watercourses and marshy fields. It is a naturalized weed in western North America; it is not clear whether it is native in the eastern part of the continent or was introduced from Europe.

Selected References

None.

Lower Taxa

None.

"high" is not a number.

not prolonged +
compressed-ellipsoid +  and discoid +
1.2-3 times as wide as thick +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
with weak transverse wrinkles +  and smooth +
0.8mm;1mm +
1cm;5cm +
obtuse +, rounded +, crenate-lobulate +, crenate +, parted +, lobed +, truncate +  and cordate +
1.6cm;6.8cm +
Alan T. Whittemore +
Linnaeus +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
obtuse +, rounded +, crenate-lobulate +, crenate +, parted +, lobed +, truncate +  and cordate +
1.6cm;6.8cm +
straight +
deltate +
0.1 cm1 mm <br />0.001 m <br /> (?) +
lobed;divided or deeply dissected +
large +  and small +
globose;cylindric +
2-25-flowered +
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
St. Pierre and Miquelon +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Que. +, Sask. +, Ala. +, Ark. +, Calif. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +  and Europe +
0-700 m +
large +  and expanded +
showy +  and inconspicuous +
sessile +  and aggregate +
cylindric;obovoid;cylindric;obovoid;globose;lenticular;discoid +
Ponds, ditches and riverbanks +
0.5 cm5 mm <br />0.005 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
cylindric;ellipsoid +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
axillary +  and terminal +
parted +  and lobed +
petiolate +, compound +  and simple +
whorled +, opposite +  and alternate +
cauline +  and basal +
parted +  and lobed +
palmate +  and pinnate +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1.6cm;6.8cm +
distinct +
conspicuous +
linear +  and orbiculate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering late winter–summer (Mar–Sep). +
4 +  and 250 +
glabrous +  and pubescent +
circular +  and crescent--shaped +
nodal +  and basal +
not arillate +  and stalked +
1 cm10 mm <br />0.01 m <br /> (?) +  and 5 cm50 mm <br />0.05 m <br /> (?) +
lobed +  and undivided +
1.6 cm16 mm <br />0.016 m <br /> (?) +  and 6.8 cm68 mm <br />0.068 m <br /> (?) +
white;yellow;white;yellow;purple;sometimes;green +
deciduous +
distinct +
hirsute +  and glabrous +
3 +  and 5 +
oblong +  and elliptic ovate or lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
(5-)10-many +
persistent +
Hecatonia scelerata +
Ranunculus sceleratus var. sceleratus +
Ranunculus sceleratus +
variety +
funnel--shaped +
perennial +  and annual +
hirsute +  and glabrous +
herbaceous +  and woody +