Ranunculus aestivalis: Difference between revisions
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{{Short description|Species of buttercup}} |
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{{Taxobox |
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{{Speciesbox |
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|status_system = TNC |
|status_system = TNC |
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| regnum = [[Plant]]ae |
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| divisio = [[Flowering plant|Magnoliophyta]] |
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| classis = [[Magnoliopsida]] |
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| ordo = [[Ranunculales]] |
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| familia = [[Ranunculaceae]] |
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| ⚫ | '''''Ranunculus aestivalis''''' is a rare species of [[Ranunculus|buttercup]] known by the common name '''autumn buttercup'''. It is [[Endemism|endemic]] to the state of [[Utah]] in the United States, where it exists only in [[Garfield County, Utah|Garfield County]] next to the [[Sevier River]].<ref name=cpc>[http://www.centerforplantconservation.org/collection/cpc_viewprofile.asp?CPCNum=3705 ''Ranunculus aestivalis''.] Center for Plant Conservation.</ref> It is restricted to a moist microhabitat in an otherwise dry, open [[ecosystem]], and the amount of available habitat is very limited.<ref name=tnc>[http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Ranunculus+aestivalis ''Ranunculus aestivalis''.] The Nature Conservancy.</ref> This is a federally listed [[endangered species]] of the United States. It has been described as "the most graceful and showy members of the genus in the western United States," but also "one of the state's rarest and most restricted plants."<ref name=tnc/> |
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| ⚫ | '''''Ranunculus aestivalis''''' is a rare species of [[Ranunculus|buttercup]] known by the common names '''fall buttercup'''<ref name="usda">{{PLANTS|id=RAAE|taxon=Ranunculus aestivalis|accessdate=18 October 2015}}</ref> and '''autumn buttercup'''. It is [[Endemism|endemic]] to the state of [[Utah]] in the United States, where it exists only in [[Garfield County, Utah|Garfield County]] next to the [[Sevier River]].<ref name="cpc">[http://www.centerforplantconservation.org/collection/cpc_viewprofile.asp?CPCNum=3705 ''Ranunculus aestivalis''.] {{webarchive|url=https://web.archive.org/web/20111026045850/http://www.centerforplantconservation.org/Collection/CPC_ViewProfile.asp?CPCNum=3705 |date=2011-10-26 }} Center for Plant Conservation.</ref> It is restricted to a moist microhabitat in an otherwise dry, open [[ecosystem]], and the amount of available habitat is very limited.<ref name="tnc">[http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Ranunculus+aestivalis ''Ranunculus aestivalis''.] The Nature Conservancy.</ref> This is a federally listed [[endangered species]] of the United States. It has been described as "the most graceful and showy members of the genus in the western United States," but also "one of the state's rarest and most restricted plants."<ref name="tnc" /> |
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| ⚫ | This plant is often treated as a [[Variety (botany)|variety]] of ''[[Ranunculus acriformis]]''<ref name=fna>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233501102 ''Ranunculus acriformis'' var. ''aestivalis''.] Flora of North America.</ref> or ''[[Ranunculus acris]]''.<ref name=usda |
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| ⚫ | This plant is often treated as a [[Variety (botany)|variety]] of ''[[Ranunculus acriformis]]''<ref name="fna">[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233501102 ''Ranunculus acriformis'' var. ''aestivalis''.] Flora of North America.</ref> or ''[[Ranunculus acris]]''.<ref name="usda" /> A [[genetic analysis]] study showed it to be sufficiently separate and it was elevated to species status by one group of authors in 1994.<ref name="van">Van Buren, R., et al. (1994). [https://www.jstor.org/pss/2445501 Evaluating the relationship of autumn buttercup (''Ranunculus acriformis'' var. ''aestivalis'') to some close congeners using random amplified polymorphic DNA.] ''Am J Bot'' 81(4) 514-19.</ref> |
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| ⚫ | This plant produces a hairy, erect stem 30 to 60 centimeters tall. The leaves are divided into three dissected parts, or sometimes three leaflets. Each plant produces about 6 to 10 flowers.<ref name=tnc/> The flower has five, or occasionally ten yellow petals each around a centimeter long.<ref name=fna/> Blooming occurs in July through October, giving the plant its common name.<ref name=tnc/> |
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==Description== |
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| ⚫ | This wildflower grows in wet [[river|riparian]] meadows on the western slope of the Sevier River Valley of Utah. The meadows are fed by [[springs]], keeping them [[marsh]]y. The plants grow on slightly raised mounds in the [[bog]]gy meadows and adjacent drier habitat. Other plants in the habitat include ''[[Achillea millefolium]]'', ''[[Juncus articus]]'' var. ''balticus'', ''[[Carex nebrascensis]]'', ''[[ |
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| ⚫ | This plant produces a hairy, erect stem 30 to 60 centimeters tall. The leaves are divided into three dissected parts, or sometimes three leaflets. Each plant produces about 6 to 10 flowers.<ref name="tnc" /> The flower has five, or occasionally ten yellow petals each around a centimeter long.<ref name="fna" /> Blooming occurs in July through October, giving the plant its common name.<ref name="tnc" /> The [[Binomial nomenclature|specific epithet]], ''aestivalis'', comes from Latin and means "pertaining to the summer".<ref name="Eggli Newton 2004">{{cite book |last=Eggli |first=Urs |last2=Newton |first2=Leonard E. |title=Etymological Dictionary of Succulent Plant Names |publisher=Springer |location=Berlin, Heidelberg |year=2004 |isbn=978-3-540-00489-9 |url=https://books.google.com/books?id=u2n5vusQ1DEC&pg=PA4 |access-date=12 November 2018 |page=4}}</ref> |
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==Distribution and habitat== |
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Threats to the plant include changes in the [[water regime]], because the plant relies on a certain level of moisture in its microhabitat. [[Grazing]] may also affect the plant.<ref name=cpc/> Grazing may have positive effects at times, as [[livestock]] trims down competing vegetation, such as [[Carex|sedges]].<ref name=tnc/> |
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| ⚫ | This wildflower grows in wet [[river|riparian]] meadows on the western slope of the Sevier River Valley of Utah. The meadows are fed by [[Spring (hydrosphere)|springs]], keeping them [[marsh]]y. The plants grow on slightly raised mounds in the [[bog]]gy meadows and adjacent drier habitat. Other plants in the habitat include ''[[Achillea millefolium]]'', ''[[Juncus articus]]'' var. ''balticus'', ''[[Carex nebrascensis]]'', ''[[Symphyotrichum spathulatum]]'' var. ''spathulatum'', ''[[Plantago eriopoda]]'', ''[[Lysimachia maritima]]'', ''[[Carex aquatilis]]'', ''[[Hordeum jubatum]]'', and ''[[Trifolium]]'', ''[[Dodecatheon]]'', and ''[[Eleocharis]]'' species. [[Moss]]es grow among the plants as well.<ref name="tnc" /> |
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Threats to the plant include changes in the local [[hydrology]], because the plant relies on a certain level of moisture in its microhabitat. [[Irrigation]] may be a cause of these changes.<ref name="utah">[http://dwrcdc.nr.utah.gov/rsgis2/search/Display.asp?FlNm=ranuaest ''Ranunculus aestivalis''.] Utah DNR.</ref> [[Grazing]] may also affect the plant.<ref name="cpc" /> Grazing may have positive effects at times, as [[livestock]] trims down competing vegetation, such as [[Carex|sedges]].<ref name="tnc" /> A [[genetic bottleneck]] may result from the small numbers of remaining plants.<ref name="whit">Whitney, S. [http://www.deseretnews.com/article/695213728/A-bloomin-project--Can-the-endangered-autumn-buttercup-be-saved.html A bloomin' project – Can the endangered autumn buttercup be saved?] ''[[Deseret News]]'' September 28, 2007.</ref> |
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==Taxonomy== |
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| ⚫ | This plant was feared extinct in the 1970s and was rediscovered in 1982. [[The Nature Conservancy]] purchased the land holding the buttercups and made it a [[nature preserve]].<ref name="cpc" /><ref name="whit" /> The plant was [[plant propagation|propagated]] in [[tissue culture]].<ref name="whit" /> The Conservancy and other agencies have planted some autumn buttercup plants in the Conservancy's preserve near [[Panguitch, Utah]] to augment the small population.<ref name="preserve">[http://www.nature.org/ourinitiatives/autumn-buttercup-preserve.xml Autumn Buttercup Preserve.] The Nature Conservancy.</ref> |
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==References== |
==References== |
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{{Reflist}} |
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{{Taxonbar|from=Q1096930}} |
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[[Category:Ranunculus]] |
[[Category:Ranunculus|Aestivalis]] |
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[[Category:Flora of Utah]] |
[[Category:Flora of Utah]] |
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[[Category:Garfield County, Utah]] |
[[Category:Garfield County, Utah]] |
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[[Category:Plants described in 1948]] |
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Latest revision as of 04:16, 22 April 2023
| Ranunculus aestivalis | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Ranunculales |
| Family: | Ranunculaceae |
| Genus: | Ranunculus |
| Species: | R. aestivalis
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| Binomial name | |
| Ranunculus aestivalis (L.D. Benson) Van Buren & Harper
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Ranunculus aestivalis is a rare species of buttercup known by the common names fall buttercup[1] and autumn buttercup. It is endemic to the state of Utah in the United States, where it exists only in Garfield County next to the Sevier River.[2] It is restricted to a moist microhabitat in an otherwise dry, open ecosystem, and the amount of available habitat is very limited.[3] This is a federally listed endangered species of the United States. It has been described as "the most graceful and showy members of the genus in the western United States," but also "one of the state's rarest and most restricted plants."[3]
This plant is often treated as a variety of Ranunculus acriformis[4] or Ranunculus acris.[1] A genetic analysis study showed it to be sufficiently separate and it was elevated to species status by one group of authors in 1994.[5]
Description
[edit]This plant produces a hairy, erect stem 30 to 60 centimeters tall. The leaves are divided into three dissected parts, or sometimes three leaflets. Each plant produces about 6 to 10 flowers.[3] The flower has five, or occasionally ten yellow petals each around a centimeter long.[4] Blooming occurs in July through October, giving the plant its common name.[3] The specific epithet, aestivalis, comes from Latin and means "pertaining to the summer".[6]
Distribution and habitat
[edit]This wildflower grows in wet riparian meadows on the western slope of the Sevier River Valley of Utah. The meadows are fed by springs, keeping them marshy. The plants grow on slightly raised mounds in the boggy meadows and adjacent drier habitat. Other plants in the habitat include Achillea millefolium, Juncus articus var. balticus, Carex nebrascensis, Symphyotrichum spathulatum var. spathulatum, Plantago eriopoda, Lysimachia maritima, Carex aquatilis, Hordeum jubatum, and Trifolium, Dodecatheon, and Eleocharis species. Mosses grow among the plants as well.[3]
Threats to the plant include changes in the local hydrology, because the plant relies on a certain level of moisture in its microhabitat. Irrigation may be a cause of these changes.[7] Grazing may also affect the plant.[2] Grazing may have positive effects at times, as livestock trims down competing vegetation, such as sedges.[3] A genetic bottleneck may result from the small numbers of remaining plants.[8]
Taxonomy
[edit]This plant was feared extinct in the 1970s and was rediscovered in 1982. The Nature Conservancy purchased the land holding the buttercups and made it a nature preserve.[2][8] The plant was propagated in tissue culture.[8] The Conservancy and other agencies have planted some autumn buttercup plants in the Conservancy's preserve near Panguitch, Utah to augment the small population.[9]
References
[edit]- ^ a b USDA, NRCS (n.d.). "Ranunculus aestivalis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 18 October 2015.
- ^ a b c Ranunculus aestivalis. Archived 2011-10-26 at the Wayback Machine Center for Plant Conservation.
- ^ a b c d e f Ranunculus aestivalis. The Nature Conservancy.
- ^ a b Ranunculus acriformis var. aestivalis. Flora of North America.
- ^ Van Buren, R., et al. (1994). Evaluating the relationship of autumn buttercup (Ranunculus acriformis var. aestivalis) to some close congeners using random amplified polymorphic DNA. Am J Bot 81(4) 514-19.
- ^ Eggli, Urs; Newton, Leonard E. (2004). Etymological Dictionary of Succulent Plant Names. Berlin, Heidelberg: Springer. p. 4. ISBN 978-3-540-00489-9. Retrieved 12 November 2018.
- ^ Ranunculus aestivalis. Utah DNR.
- ^ a b c Whitney, S. A bloomin' project – Can the endangered autumn buttercup be saved? Deseret News September 28, 2007.
- ^ Autumn Buttercup Preserve. The Nature Conservancy.
