Difference between revisions of "Ranunculus abortivus"
Sp. Pl. 1: 551. 1753.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect or nearly erect, 10-60 cm, glabrous, each with 3-50 flowers. <b>Roots</b> filiform, sometimes enlarged basally, 0.5-1.5 mm thick. <b>Basal</b> leaves persistent, blades reniform or orbiculate, undivided or sometimes innermost 3-parted or -foliate, 1.4-4.2 × 2-5.2 cm, base shallowly to deeply cordate, margins crenulate to crenate-lobulate, apex rounded to rounded-obtuse. <b>Flowers</b>: pedicels glabrous or nearly so; receptacle sparsely to very sparsely pilose; sepals 2.5-4 × 1-2 mm, abaxially glabrous; petals 5, 1.5-3.5 × 1-2 mm; nectary scale glabrous. <b>Heads</b> of achenes ovoid, 3-6 × 2.5-5 mm; achenes 1.4-1.6 × 1-1.5 mm, glabrous; beak subulate, curved, 0.1-0.2 mm. <b>2n</b> = 16.</span><!-- |
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|publication year=1753 | |publication year=1753 | ||
|special status=Endemic;Selected by author to be illustrated;Weedy | |special status=Endemic;Selected by author to be illustrated;Weedy | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_718.xml |
|genus=Ranunculus | |genus=Ranunculus | ||
|subgenus=Ranunculus subg. Ranunculus | |subgenus=Ranunculus subg. Ranunculus | ||
|section=Ranunculus sect. Epirotes | |section=Ranunculus sect. Epirotes | ||
|species=Ranunculus abortivus | |species=Ranunculus abortivus | ||
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Revision as of 14:48, 27 July 2019
Stems erect or nearly erect, 10-60 cm, glabrous, each with 3-50 flowers. Roots filiform, sometimes enlarged basally, 0.5-1.5 mm thick. Basal leaves persistent, blades reniform or orbiculate, undivided or sometimes innermost 3-parted or -foliate, 1.4-4.2 × 2-5.2 cm, base shallowly to deeply cordate, margins crenulate to crenate-lobulate, apex rounded to rounded-obtuse. Flowers: pedicels glabrous or nearly so; receptacle sparsely to very sparsely pilose; sepals 2.5-4 × 1-2 mm, abaxially glabrous; petals 5, 1.5-3.5 × 1-2 mm; nectary scale glabrous. Heads of achenes ovoid, 3-6 × 2.5-5 mm; achenes 1.4-1.6 × 1-1.5 mm, glabrous; beak subulate, curved, 0.1-0.2 mm. 2n = 16.
Phenology: Flowering late winter–summer (Mar–Jul).
Habitat: Woods, meadows, fallow fields, and clearings
Elevation: 0-3100 m
Distribution
St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Ala., Alaska, Ark., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Va., Wash., W.Va., Wis., Wyo.
Discussion
Three varieties of Ranunculus abortivus are sometimes recognized. Plants from New England and the northern Appalachians often have thick stems and orbiculate leaves with narrow, deep basal sinuses; this form has been called R. abortivus var. eucyclus. Plants from southeastern Virginia may have the upper bracts merely lobed rather than deeply divided as is usual in R. sect. Epirotes; those have been called R. arbortivus var. indivisus.
Native American tribes have used Ranunculus abortivus medicinally for a variety of purposes (D. E. Moerman 1986).
Selected References
None.