Difference between revisions of "Trollius laxus"
Trans. Linn. Soc. London 8: 303. 1807.
Common names: Spreading globe-flower American globe-flower
Endemic
Synonyms: Trollius americanus de Candolle
Treatment appears in FNA Volume 3.
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
| − | |name= | + | |name=Trollius americanus |
|authority=de Candolle | |authority=de Candolle | ||
| + | |rank=species | ||
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|hierarchy=Ranunculaceae;Trollius;Trollius laxus | |hierarchy=Ranunculaceae;Trollius;Trollius laxus | ||
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>to 0.5-5.2 dm, base with few petioles (occasionally thatchlike) persisting from previous year. <b>Leaves</b>: basal leaves with petioles to 5-30 cm; cauline leaves 2-5, base scarcely membranous or clasping. <b>Flowers</b> 2.5-5 cm diam.; sepals 5-7(-9), spreading, bright to pale yellow when fresh, ovate to obovate or nearly orbiculate, 10-20 mm; petals 10-15(-25), yellow, 1/2-2/3 length of stamens when pollen shed, 3-6 mm. <b>Follicles</b> usually 5-12, 8-12 mm including beak; beak usually straight or slightly incurved (rarely slightly recurved). <b>2n</b>=32.</span><!-- |
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|elevation=100-500 m | |elevation=100-500 m | ||
|distribution=Conn.;Del.;N.J.;N.Y.;Pa.;Ohio. | |distribution=Conn.;Del.;N.J.;N.Y.;Pa.;Ohio. | ||
| − | |discussion=<p>Trollius laxus is closely related to the widespread, relatively common, western species T. albiflorus. Morphologically, the two are separated only by sepal color and the tendency for T. albiflorus to have slightly recurved follicular beaks and slightly smaller seeds.</p><!-- | + | |discussion=<p><i>Trollius laxus</i> is closely related to the widespread, relatively common, western species <i>T. albiflorus</i>. Morphologically, the two are separated only by sepal color and the tendency for <i>T. albiflorus</i> to have slightly recurved follicular beaks and slightly smaller seeds.</p><!-- |
| − | --><p>Trollius laxus has been extirpated from central Pennsylvania. The species has been reported from Michigan; E. G. Voss (1972+, vol. 2) cast doubt on its occurrence there because no specimens to substantiate the reports have been found.</p><!-- | + | --><p><i>Trollius laxus</i> has been extirpated from central Pennsylvania. The species has been reported from Michigan; E. G. Voss (1972+, vol. 2) cast doubt on its occurrence there because no specimens to substantiate the reports have been found.</p><!-- |
| − | --><p>The Cherokee used infusions prepared from the leaves and stems of Trollius laxus to treat thrash (D. E. Moerman 1986).</p> | + | --><p>The Cherokee used infusions prepared from the leaves and stems of <i>Trollius laxus</i> to treat thrash (D. E. Moerman 1986).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Trollius laxus | name=Trollius laxus | ||
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|authority=Salisbury | |authority=Salisbury | ||
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
| − | |synonyms= | + | |synonyms=Trollius americanus |
|basionyms= | |basionyms= | ||
|family=Ranunculaceae | |family=Ranunculaceae | ||
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|publication year=1807 | |publication year=1807 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_630.xml |
|genus=Trollius | |genus=Trollius | ||
|species=Trollius laxus | |species=Trollius laxus | ||
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Latest revision as of 21:50, 5 November 2020
Stems to 0.5-5.2 dm, base with few petioles (occasionally thatchlike) persisting from previous year. Leaves: basal leaves with petioles to 5-30 cm; cauline leaves 2-5, base scarcely membranous or clasping. Flowers 2.5-5 cm diam.; sepals 5-7(-9), spreading, bright to pale yellow when fresh, ovate to obovate or nearly orbiculate, 10-20 mm; petals 10-15(-25), yellow, 1/2-2/3 length of stamens when pollen shed, 3-6 mm. Follicles usually 5-12, 8-12 mm including beak; beak usually straight or slightly incurved (rarely slightly recurved). 2n=32.
Phenology: Flowering spring–summer.
Habitat: Calcareous soils (rarely not calcareous) in alkaline meadows and open swamps
Elevation: 100-500 m
Distribution
Conn., Del., N.J., N.Y., Pa., Ohio.
Discussion
Trollius laxus is closely related to the widespread, relatively common, western species T. albiflorus. Morphologically, the two are separated only by sepal color and the tendency for T. albiflorus to have slightly recurved follicular beaks and slightly smaller seeds.
Trollius laxus has been extirpated from central Pennsylvania. The species has been reported from Michigan; E. G. Voss (1972+, vol. 2) cast doubt on its occurrence there because no specimens to substantiate the reports have been found.
The Cherokee used infusions prepared from the leaves and stems of Trollius laxus to treat thrash (D. E. Moerman 1986).
Selected References
None.
Lower Taxa
None.