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References

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	[[Category:Flora of Russia]]		[[Category:Flora of Russia]]
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	[[Category:Plants described in 1759]]		[[Category:Plants described in 1759]]
	[[Category:Taxa named by Carl Linnaeus]]		[[Category:Taxa named by Carl Linnaeus]]

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{{short description|Species of plant}}
{{Speciesbox
| image = Воронець 09.jpg
| genus = Paeonia
| species = tenuifolia
| authority = [[Carl Linnaeus|L.]]<ref name=HZ>{{cite journal|first1= De-Yuan|last1= Hong|first2= Shi-Liang|last2= Zhou|year= 2003|title= Paeonia (Paeoniaceae) in the Caucasus|journal= Botanical Journal of the Linnean Society|volume= 143|issue= 2|pages= 135–150|url= http://www.paeo.de/h2005/hong_dy/hong_caucasus.pdf|accessdate= 2016-06-20|doi=10.1046/j.1095-8339.2003.00173.x|doi-access= free}}</ref><ref name=TPL>{{cite web|website= The Plantlist|title= Paeonia tenuifolia L.|url= http://www.theplantlist.org/tpl/record/kew-2560967|accessdate= 2016-06-20}}</ref>
| synonyms =
* ''P. biebersteiniana'', ''P. tenuifolia'' [[Subspecies|ssp.]] ''biebersteiniana'', [[Variety (botany)|var.]] ''biebersteiniana''
* ''P. carthalinica'' 
}}

'''''Paeonia tenuifolia''''' is a herbaceous species of [[peony]] that is called the '''steppe peony''' or the '''fern leaf peony'''. It is native to the [[Caucasus Mountains]] of [[Russia]] and the [[Black Sea]] coast of [[Ukraine]], spreading westward into [[Bulgaria]], [[Romania]] and [[Serbia]] and eastward to northwestern [[Kazakhstan]]. It was described by [[Carl Linnaeus|Linnaeus]] in 1759. The leaves are finely divided into almost thread-like segments and grow close together on the stems. This peony can reach {{convert|30-60|cm|in|abbr=on}} in height. The scented red flowers have numerous yellow [[stamen]]s in the centre.<ref>''Peonies: The Imperial Flower'', by Jane Fearnley Whittingstall. {{ISBN|0-297-82424-4}}</ref>

==Description==
''Paeonia tenuifolia'' is a hairless [[herbaceous plant|herbaceous]] [[perennial plant]] with a stem of 30–60 cm high, which is densely set with [[Leaf#Arrangement on the stem|alternately arranged]] compound leaves. The lowest leaves are twice compounded or the leaflets are deeply divided into many fine linear segments, ½-6 mm wide, with a blunt to rounded tip, dark green above, and lighter [[glaucous]] green below. The usually single flower on each stem seems to be floating on the foliage. The flower is 6–8 cm across, cup-shaped, with deep crimson, long inverted egg-shaped petals, with a rounded or blunt top. The [[stamen]]s are 1½—2 cm long, with yellow filaments, anthers and pollen. There are usually three, sometimes two, coarse felty haired [[carpel]]s, that will eventually develop into 2 cm long, dry, dehiscent fruits called [[Follicle (fruit)|follicles]]. This species is [[diploid]] with ten [[chromosome]]s (2n=10).<ref name=Stern>{{cite book|first= Frederick Claude|last= Stern|authorlink= Frederick Claude Stern|year= 1946|title= A study of the genus Paeonia|publisher= The Royal Horticultural Society|location= London}} ''cited on'' {{cite web|website= Web Project Paeonia|author= Carsten Burkhardt|title= F.C. Stern: A Study of the Genus Paeonia (1946)|url= http://www.paeon.de/h1/st/stern1.html|accessdate= 2016-05-03}}</ref>

==Taxonomy==
''Paeonia tenuifolia'' was first described by Linnaeus in the 10th edition of his [[Systema naturae]] of 1759. [[Franz Josef Ruprecht]] distinguished it from ''P. biebersteiniana'', which was based on a specimen from [[Stavropol]], in the [[Flora Caucasi]], that was published in 1869. Opinions seem to have been divided as Lomakin only mentions ''P. tenuifolia'' in 1897, while two years later [[Vladimir Ippolitovich Lipsky|Lipsky]] separated the two species again, along with [[Nikolai Schipczinsky]] in 1937. Ketzchoweli described in 1959 ''P. carthalinica'' from [[Igoeti]], Georgia and thought it to be very closely related to ''P. tenuifolia'', though having broader leaflets and greyish felty hairs on the carpels and follicles. Kemularia-Nathadze, who revised the genus ''Paeonia'' in 1961, considered these two might be synonymous. In 2003, Hong and Zhou found the characters that were used to distinguish between all three taxa occurred in any combination and intergraded. Even within one population, plants typical fitting to either of the original descriptions occurred together. They found one plant with some leaves with very narrow leaflets less than 1 mm, while other leaves on the same plant had broad leaflets of over ½ cm. There seems to be consensus now that all are best considered as one polymorphic species.<ref name=HZ /><ref name=TPL />

==Ecology==
[[File:Пион тонколистный.jpg|thumb|left|upright=1.5|Wild ''Paeonia tenuifolia'' in a protected area of Russian [[Eurasian steppe|steppe]], [[Volgograd Oblast]].]]
''P. tenuifolia'' flowers earlier than other peonies, and dies down early too. This is probably because it grows in [[steppes]], with dry and hot summers. The seeds of this species germinate above the soil in full light, which is exceptional among peonies.<ref name=HPS>{{cite web|website= Heartland Peony Society|title= Paeonia tenuifolia|url= http://www.peonies.org/P_tenuifolia.html|accessdate= 2016-04-12}}</ref>

The caterpillars of the moth ''[[Pelatea klugiana]]'' feed on the leaves of several ''Paeonia'' species, including ''Paeonia tenuifolia''. Several larvae live together in a nest of silk that binds together several lobes of a leaf, and move only within the nest.<ref>{{cite journal|first1= Svetlana V.|last1= Nedoshivina|first2= Vadim V.|last2= Zolotuhin|year= 2005|title= A new subspecies of Pelatea klugiana (Freyer, 1836) from the Middle Volga Region of Russia, with notes on its morphology and life history (Tortricidae)|journal= Nota Lepidopterologica|volume= 28|issue= 1|pages= 3–9|url= http://www.soceurlep.eu/uploads/nota/bd28_1/01%20Zolotuhin.pdf|accessdate= 2016-04-26}}</ref>

==Cultivation==
This [[hardiness (plants)|hardy]] species is an attractive plant for the garden which is easy to grow and hardy in [[temperate climate|temperate]] zones. Still, as an inhabitant of the steppes of southern Russia and Kazakhstan, it is adapted to growing in the full sun and experiencing cold winters, and dry, hot summers, and it is susceptible to moult development on its leaves during prolonged wet spells.<ref name=HPS /> It has been in cultivation in Germany since 1594, and was introduced to England in 1765 and America in 1806. There are several cultivars and hybrids known to be in cultivation:
* ''Paeonia tenuifolia'' 'Rosea' has pink flowers
* ''Paeonia tenuifolia'' Rosea Plena' with double pink flowers<ref name=HPS />
* ''Paeonia'' ×''smouthii'', a presumed hybrid with ''P. lactiflora'', which was commercially introduced in 1843, and sometimes listed as ''P. laciniata'' in nursery catalogues. It is taller than ''P. tenuifolia'', and usually has more than one flower per stem with a sweet perfume, traits inherited from ''[[Paeonia lactiflora|P. lactiflora]]''. It is a [[diploidy|diploid]], and does not produce fertile seed. It was probably named in honor of M. Smout, a professional chemist at the [[Catholic University of Mechelen]], who was an active breeder of plants.<ref>{{cite web|website= Canadian Gardening|title= Early peonies marry with late daffodils and bridalwreath spiraea for colour|url= http://www.canadiangardening.com/gardens/stephen-speaks/early-peonies-marry-with-late-daffodils-and-bridalwreath-spir-a-for-colour/a/60342|accessdate= 2016-04-12}}{{Dead link|date=April 2020 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
* ''Paeonia'' ×''majko'', a presumed hybrid with ''[[Paeonia daurica|P. daurica]]'', found in Georgia, is not deemed particularly appealing.<ref>{{cite book|first1= I.|last1= Pauwels|first2= G.|last2= Vervoort|year= 2009|title= Pioenen [Peonies]|edition= 1: in volle glorie [in full splendor]|publisher= Uitgever Lannoo Uitgeverij|isbn= 978-9020965070|pages= 143}}</ref>
* ''P. tenuifolia'' var. ''plena'', a variety with double flowers, is said to have been introduced to English gardens in 1765.
''P. hybrida'': in 1818 it was regarded as a garden hybrid between ''[[Paeonia anomala|P. anomala]]'' and ''P. tenuifolia'' by [[Augustin Pyramus de Candolle]] in 1818, which according to him also occurred in the wild.<ref name=Stern /> However, Hong and Pan regard ''P. hybrida'' as synonymous with ''P. anomala''.<ref name=HP>{{cite journal|author1= Hong De-Yuan|author2= Pan Kai-Yu |year= 2004|title= A Taxonomic Revision of the Paeonia anomala Complex (Paeoniaceae)|journal= Annals of the Missouri Botanical Garden|volume= 91|issue= 1|pages= 87–98|jstor= 3298571}}</ref>

==References==
{{Reflist}}
{{Commonscat}}

{{Taxonbar|from=Q2664631}}

[[Category:Peonies|tenuifolia]]
[[Category:Flora of the Caucasus]]
[[Category:Flora of Bulgaria]]
[[Category:Flora of Kazakhstan]]
[[Category:Flora of Russia]]
[[Category:Flora of Ukraine]]
[[Category:Plants described in 1759]]
[[Category:Taxa named by Carl Linnaeus]]

Paeonia tenuifolia - Revision history

172.70.86.138: /* References */

178.149.47.71 at 21:10, 14 July 2022