Open Access
How to translate text using browser tools
4 December 2019 From European priority species to characteristic apophyte: Epipactis tallosii (Orchidaceae)
Kristóf Süveges, Viktor Löki, Ádám Lovas-Kiss, Tibor Ljubka, Réka Fekete, Attila Takács, Orsolya Vincze, Balázs András Lukács, Attila Molnár V.
Author Affiliations +

Epipactis tallosii is considered as one of the highly threatened European orchid species due to its local distribution and small isolated populations that are characterized by decreasing trends. The species is now enlisted in the endangered (EN) category of the Red List. Nevertheless, during the last decade, multiple new populations of the species were found in Hungary, while our field surveys indicated that E. tallosii populations regularly occur in poplar (Populus) plantations. Here we conducted a thorough field survey of poplar plantations, by visiting 182 plantations in Hungary and surrounding countries in the Pannonian Biogeographic Region. We found E. tallosii in 23% of the visited plantations, and counted a total of c. 4000 generative shoots. Moreover, we documented the occurrence of the species to four countries, where it has not been reported before: Croatia, Romania, Serbia and Ukraine. Alien and indigenous/mixed poplar plantations were similarly likely to harbour populations of E. tallosii. Our study suggests that the distribution area and number of populations of E. tallosii is much larger than previously assumed, and that poplar plantations serve as suitable habitat islands in the agricultural landscapes for this orchid. In the light of our results, we suggest the reassessment of the IUCN category of E. tallosii and to re-categorize it as Near Threatened (NT).

Citation: Süveges K., Löki V., Lovas-Kiss Á., Ljubka T., Fekete R., Takács A., Vincze O., Lukács B. A. & Molnár V. A. 2019: From European priority species to characteristic apophyte: Epipactis tallosii (Orchidaceae). – Willdenowia 49: 401–409. doi:

Version of record first published online on 4 December 2019 ahead of inclusion in December 2019 issue.


The majority of European orchids are of significant conservation importance, due to their specific ecological and biological requirements (for example: due to their dependence on mycorrhiza, their special lifestyles, or their extreme and unique pollination strategies). Many of the orchids have restricted, or scattered distribution ranges (Jacquemyn & al. 2005; Kull & Hutchings 2006; Molnár V. 2011). Even within the family, terrestrial orchids appear to be more prone to extinction than epiphytic or lithophytic species. Almost half of the extinct orchid species are terrestrial herbaceous perennials, while two-thirds of species within the orchid family are represented by epiphytes and lithophytes (Swarts & Dixon 2009). According to the most recent IUCN Red List (Bilz & al. 2011), one of the highly threatened European orchid species is Epipactis tallosii A. Molnár & Robatsch (Fig. 1). This orchid was discovered and described relatively late (in 1997), based on a single Hungarian population at the SW foot of the Bakony mountains, near the village of Nyirád. The species was named after a Hungarian botanist, Pál Tallós (Molnár & Robatsch 1997). Epipactis tallosii is currently enlisted in the Endangered (EN) category of the Red List (Bilz & al. 2011), and is considered very rare, mostly represented by very small and isolated populations over its scattered distribution area. The area of occupancy of this orchid is estimated to be roughly 37 km2 and according to recent assessments the population exhibits a decreasing trend (Fay 2011). However, the distribution area of the species is much larger (Gügel & al. 2010). In the comprehensive book of Orchids of Europe, North Africa and the Middle East (Delforge 2006) it is stated that the distribution of the E. tallosii is “poorly known, but apparently endemic to the Danube valley and the interfluve between the Danube and Tisza, very rare and local”. In terms of its biology, E. tallosii is an autogamous (self-pollinated) and mixotrophic, rhizomatous species and can be found in a wide range of habitat types. For instance, it was found in various types of forests: in gallery forests (poplar gallery forests and riparian mixed forests of oak, elm and ash) in birch bogs, furthermore in oak and oak-hornbeam forests both on the lowlands and in more hilly regions, as well as in poplar plantations (Fig. 3) (Molnár V. & al. 2012; Molnár V. 2009). Some of these habitats were periodically flooded (Borhidi 2003), and it can be concluded that the E. tallosii can tolerate a certain degree of periodical inundation. The latter characteristic is not unique in this genus. For example E. albensis Nováková & Rydlo, E. nordeniorum Robatsh or E. exilis P. Delforge in Europe (Delforge 2006), as well as E. flava Seidenf. in Asia are also tolerant to periodic flooding (Pedersen & al. 2013). Epipactis tallosii is one of the latest flowering orchid of its genus, with a flowering period that usually lasts from July to August (Delforge 2006), but flowering specimens were observed as late as October (Molnár V. 2011).

Fig. 1.

Epipactis tallosii – A: young sprout (Ukraine: Nove Selo); B: habit (Hungary: Debrecen); C: habit (Serbia: Martonoš); D: achlorophyllous individual (Romania: Valea lui Mihai); E: inflorescence (Romania: Valea lui Mihai); F: inflorescence (Croatia: Baranjsko Petrovo Selo); G: inflorescence (Serbia: Martonoš); H: fruiting stem (Serbia: Kanjiža). – Photographs: A–H by A. Molnár V.


Besides Hungary, the presence of Epipactis tallosii has so far been known from two further C European countries (Gügel & al. 2010). The occurrence of E. tallosii in Slovakia was known from the mid-1990s (Vlčko 1997; Mereďa 2002; Kolnik & Kucera 2002), but it was not identified until 1997. The presence of the species is also known in the Czech Republic (Průša 2005; Batoušek & Kežlínek 2012). Additionally, a population of E. tallosii, originally described as a subspecies, was found in N Italy (E. tallosii subsp. zaupolensis Barbaro & Kreutz; Barbaro & Kreutz 2007). In 2010, the latter taxon was treated as a separate species, named E. zaupolensis Bongiorni & al. (Bongiorni & al. 2010). Nonetheless, according to Batoušek & Kežlínek (2012) this taxon as well as E. autumnalis D. Doro are conspecifics with E. tallosii.

Table 1.

Summary of literature data on orchid occurrence in European poplar plantations.


Table 2.

Summary of Epipactis tallosii occurrences with respect to composition of Populus species in the studied plantations.


Epipactis tallosii has been classified by the IUCN as Critically Endangered (C1) in the Czech Republic (Holub & Procházka 2000; Grulich 2012). Although formerly it was listed as Endangered (EN) in Slovakia (Vlčko & al. 2003), currently it is classified as near threatened (NT) in both Slovakia (Eliáš & al. 2015) and in Hungary (Király 2007).

It is well known that Eurasian temperate terrestrial orchids are able to colonize secondary and anthropogenically strongly influenced habitats, including mines (Esfeld & al. 2008; Shefferson & al. 2008), roadside verges (Fekete & al. 2017) and cemeteries (Löki & al. 2015; Molnár V. & al. 2017). Poplar monocultures are also known as suitable habitats for at least seven orchid taxa (including three Epipactis species) in four European countries (Table 1). During the last decade it has become increasingly evident that E. tallosii is widespread in Hungary and numerous populations of the species were found in poplar plantations (Molnár V. 2011). Poplar plantations are fast growing woody crops, thus they have been in focus of both economic and environmental interest in recent decades (Heilman 1999). The conservation value of poplar monocultures is poorly known, probably due its secondary nature and therefore a lack of thorough botanical surveys. For instance, in Hungary poplar plantations were referred to as “tree plantations in a regular network, with characterless understory, their conservational value is low” (Bölöni & al. 2011). Poplar plantations are evidently most widespread in potential habitats of willow-poplar forests. Areas formerly covered by natural vegetation are currently subject to large scale agricultural cultivation (Király & al. 2008), while the existing riverine and swamp woodlands are generally affected by invasions of alien species (e.g. Acer negundo L., Amorpha fruticosa L., Fraxinus pennsylvanica Marshall, Vitis vulpina L., etc.) (Bölöni & al. 2011; Csiszár 2012).

The presence of Epipactis tallosii in poplar monocultures was detected at multiple locations throughout Hungary and data on these occurrences was mostly published in local journals (Molnár V. & al. 1998; Csiky 2006; Tóth 2009; Nagy 2011; Csábi & al. 2015). Based on these data and our preliminary observations we hypothesized that (1) the species is more widespread in poplar plantations in the Pannonian Biogeographic Region than previously thought, and (2) the occurrence of the species is highly presumable in further countries within the Pannonian Biogeographic Region. In this article, we present the results of a systematic field survey of poplar plantations conducted within the Pannonian Biogeographic Region with the central aim to document the distribution of E. tallosii in these secondary, man-made habitats. Over the last few years, several new Epipactis species were found as new to countries' flora in this region, for example: E. purpurata Sm. in Serbia (Đorđević & al. 2010), E. muelleri Godfery in Ukraine (Fateryga & al. 2013), E. pseudopurpurata Mereďa, E. futakii Mereďa & Potůček, E. komoricensis Mereďa in Slovakia (Mereďa 1996a, 1996b; Mereďa & Potůček 1998), E. pontica Taubenheim (Batoušek 1996), E. pseudopurpurata and E. nordeniorum (Batoušek 1999) in the Czech Republic, E. greuteri H. Baumann & Künkele and E. albensis in Romania (Ardelean 2011; Molnár V. & Sramkó 2012) etc., highlighting the need for further research into the distribution of species belonging to this genus. Moreover, the first population of E. albensis that was found in Ukraine was situated in a poplar plantation (Ljubka & al. 2014), indicating the need to also focus on anthropogenic habitats during these surveys.

Fig. 2.

A: position of the studied area within Europe; B: location of the studied poplar plantations with Epipactis tallosii in the Pannonian Biogeographic Region. The size of the circles indicates the size of the E. tallosii populations, assessed based on the number of generative shoots.


Material and methods

The nomenclature used throughout this article follows Király (2009). Identification of Epipactis tallosii and separation from similar taxa (e.g. E. moravica and E. nordeniorum) was performed following Molnár V. (2011). We visited 182 poplar plantations in the Pannonian Biogeographic Region (EEA 2015), between June 2012 and August 2016. Fieldwork was mainly carried out within the borders of Hungary, but adjacent areas of Croatia, Romania, Serbia and Ukraine were also visited (Fig. 2). At each visited plantation we recorded the present poplar taxa and the orchid flora. Native poplar taxa (Populus alba L., P. ×canescens (Aiton) Sm., P. nigra L., P. tremula L.) were identified following Bartha (2009). Note that in this paper we use the name P. ×canadensis Moench agg. for all other planted, hybridogenous (non-indigenous) taxa. Originally the parent species of P. ×canadensis are P. nigra, a native species in Hungary, and P. deltoides W. Bartram ex Marshall, a North American species (Marron & al. 2003). We counted or estimated the number of individuals of all detected orchid taxa in each visited plantation. At each surveyed site we recorded the geocoordinates (recorded in WGS84 format) using a Garmin E-Trex Legend hand-held GPS device. Statistical analyses were carried out in the R 3.5.1 statistical and computing environment (R Core Team 2018). In order to test whether the occurrence of E. tallosii is dependent on the presence of native poplar taxa, we used a Chi-squared test. Using the latter test we compared the proportion of plantations with and without E. tallosii between plantations containing native poplar species (i.e. native or mixed plantations) and plantations with only alien poplar species.


We surveyed a total of 182 poplar plantations and we found Epipactis tallosii (Fig. 1) in 47 of them, representing nearly a quarter of the examined plantations (c. 23%) ( Appendix 1, supplemental content online (wi.49.49310_supplement.pdf)). Given that the emergence of flowering stems of terrestrial orchids fluctuates across years (especially due to variation in precipitation, Nagy & al. 2018), it is likely that even more sites harboured populations of E. tallosii, but remained undetected during the surveys. The species was found in poplar plantations of all five visited countries (Fig. 2). In the territory of Croatia, Romania, Serbia and Ukraine the occurrence E. tallosii was formerly unknown.

Fig. 3.

Habitats of Epipactis tallosii in hybrid poplar monocultures. – A: Croatia: Baranjsko Petrovo Selo, plantation surrounded by agricultural cropfields; B: Croatia: Čađavica; C: Serbia: Kanjiža; D, E: Hungary: Vácegres. – Photographs: A–E by A. Molnár V.


Altogether 27 occurrences of four co-occurring rhizomatous orchid taxa were also proved (Cephalanthera damasonium (Mill.) Druce, ten plantations; C. longifolia (L.) Fritsch, eight plantations; Epipactis helleborine (L.) Crantz, eight plantations; Neottia nidusavis (L.) Rich., one plantation;  Appendix 1, supplemental content online (wi.49.49310_supplement.pdf)).

Populations of Epipactis tallosii were found in plantations of indigenous Populus taxa in four cases (P. alba: one, P. canescens: three), in mixed plantations of indigenous Populus taxa and P. ×canadensis agg. in five cases (P. alba & P. ×canadensis agg.: two, P. canescens & P. ×canadensis agg.: one, P. tremula & P. ×canadensis agg.: one, P. ×canadensis agg. & P. nigra & P. alba: one), moreover, it was found in 38 P. ×canadensis agg. monocultures (Table 2) ( Appendix 1, supplemental content online (wi.49.49310_supplement.pdf)), which is the most widespread type of poplar plantation in the Pannonian Biogeographic Region, but especially in Hungary. 24.84% of the alien and 33.33% of native or mixed plantations contained E. tallosii. The statistical analysis indicated that this difference was not significant between alien and indigenous/mixed plantations regarding the likelihood of occurrence of E. tallosii (Chi-squared test, X2 = 0.40, p- value= 0.5262). In the 47 checked populations, we found altogether c. 4000 generative shoots of E. tallosii, but the size of populations shows remarkable variability (mean±SD = 84±170) (Fig. 2). All of the almost four thousand individuals of the species detected during our survey were found on altitudes between 85–194 meters above see level and none were found in the 8 visited plantations above 194 m (altitudinal range of visited plantations: 85–378 m).


Poplar plantations appear to represent suitable habitat “islands” for orchids in the agricultural landscape. This is probably explained by the composition of the root zone (presumably even in case of the Populus ×canadensis agg. plantations), which provide a diverse ectomycorrhizal environment in poplar plantations (Danielsen 2012). Rhizomatous mixotrophic orchids, such as the Epipactis tallosii usually show various degree of fungal dependence and specificity, often using multiple fungal partners (Ouanphanivanh & al. 2008). A recent study conducted in North America has shown that native and non-native poplar plantations have similar mycological diversity (Royer-Tardif & al. 2018). The results of the latter article are also supported by our observations. The sites inspected within the framework of our research were mostly man-made forests of Canadian poplar (P. ×canadensis agg.), while the presence of E. tallosii, often in high abundances, suggests that the ecological needs of this species, as well as of other orchids, are met in these “half-alien” hybrid plantations. Colonization of these often remote, scattered habitat islands may be easily accomplished by the anemochorous dust-seeds of orchids (Sonkoly & al. 2016), making these habitats not only suitable, but also easily accessible.

It was previously shown that plants of Epipactis helleborine produce more seeds per fruit in anthropogenic than in natural habitats (Rewicz & al. 2015). This study also highlights that in the anthropogenic habitats, E. helleborine individuals were much taller than in natural habitats, while taller plants are known to produce more seeds than shorter ones (Rewicz & al. 2015). These studies together indicate that anthropogenic habitats are often superior to the natural habitats, at least in the case of orchids.

Importantly, our results highlight that the area of occupancy of Epipactis tallosii is much larger than previously assumed and extends far beyond the previously estimated 37 km2 (Fay 2009). Moreover, based on the data presented here, the occurrence of this species can be extended to four countries (i.e. Croatia, Romania, Ukraine and Serbia), in which no occurrence of this species was previously documented. Although populations of E. tallosii are sporadic and often isolated through most of the species' range, in some regions, such as along the river Tisza or in some areas of the Transdanubia (W Hungary), the populations are close to each other. Moreover, the number of individuals is also high, local population sizes can often reach hundreds or even thousand individuals.

We have shown that Epipactis tallosii readily colonizes and proliferates in poplar plantations, the latter representing a typical and common habitat type in almost all of Hungary. According to the data of the Central Statistical Office of Hungary (KSH 2017), in 2017 poplar forests – with spatial extension of 1972 square kilometre – represent the fourth largest forest type (10.6%) in terms of area in this country. Consequently, we can not declare that the number and the size of suitable habitats or potentially suitable habitats shows a decreasing tendency or would be on the verge of disappearance. Moreover, due to the reproductive biology of this species (i.e. self-pollinated), it is not affected by the worldwide pollination crisis either (Ghazoul 2005; Steffan-Dewenter & al. 2005; Biesmeijer & al. 2006). Based on this information, we recommend reviewing the IUCN Red List categorization of E. tallosii and changing its category from Endangered (EN) to Near Threatened (NT).


This research was supported by the Hungarian Research Fund (grants NKFI–OTKA K108992 and K132573). RF, VL, KS, ÁL-K, OV and BAL were supported by the New National Excellence Programme of the Hungarian Ministry for Innovation and Technology (ÚNKP-18-3-I-DE-355, ÚNKP-18-3-III-DE-129, ÚNKP-19-3-I-DE-238, ÚNKP-19-4-DE-172, ÚNKP-19-4-DE-538 and ÚNKP-19-4-DE-193, respectively). OV was supported by the Romanian Ministry of Research and Innovation (PN-III-P4-ID-PCE-2016-0404). ÁL-K, OV and BAL were supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences. The authors thank Pavol Mereďa (Bratislava) and C. A. J. Kreutz (Leiden) for thorough reviews. The authors are also grateful to Timea Nagy, Gábor Sramkó and Jácint Tökölyi for their assistance during the field work.



Adamowski W. 1995: Phenotypic variation of Epipactis helleborine × E. atrorubens hybrids in anthropogenic conditions. –  Acta Soc. Bot. Poloniae 64: 303–312. Google Scholar


Adamowski W. 2004: Population expansion of native orchids in anthropogenous habitats. – Neobiota 3: 86. Google Scholar


Adamowski W. & Conti F. 1991: Mass occurrence of orchids in poplar plantations near Czeremcha village as an example of apophytism. – Phytocoenosis 3: 259–267. Google Scholar


Ardelean C. 2011: Epipactis greuteri (Orchidaceae) a new species for Romanian flora. – J. Eur. Orch. 43: 527–534. Google Scholar


Barbaro A. & Kreutz C. A. J. 2007: Epipactis tallosii A. Molnar & Robatsch subsp. zaupolensis Barbaro & Kreutz subsp. nov. (Orchidaceae) in Italia nordorientale (Friuli Venezia Giulia). – J. Eur. Orch. 39: 587–597. Google Scholar


Bartha D. 2009: Populus L. – P. 96 in: Király G. (ed.), Új magyar füvészkönyv. Magyarország hajtásos növényei. Határozókulcsok. [New Hungarian herbal. The vascular plants of Hungary. Identification key.] – Jósvafő: Aggteleki Nemzeti Park Igazgatóság [Aggtelek National Park Directorate]. Google Scholar


Batoušek P. 1996: Epipactis pontica Taubenheim – nový druh květeny České republiky a Epipactis albensis Nováková & Rydlo – nový druh květeny Bilých Karpat. – Sborn. Přír. Klubu Uherské Hradiště 1: 12–17. Google Scholar


Batoušek P. 1999: Epipactis nordeniorum a E. pseudopurpurata – dva nové druhy květeny České republiky. – Sborn. Přír. Klubu Uherské Hradiště 4: 6–11. Google Scholar


Batoušek P. & Kežlínek Z. 2012: Kruštíky České republiky. – Prostějov: Český svaz ochránců přírody ZO Hořepník. Google Scholar


Biesmeijer J. C., Roberts S. P., Reemer M., Ohlemüller R., Edwards M., Peeters T., Schaffers A. P., Potts S. G., Kleukers R., Thomas C. D., Settele J. & Kunin W. E. 2006: Parallel declines in pollinators and insect-pollinated plants in Britain and the Netherlands. –  Science 313: 351–354. Google Scholar


Bilz M., Kell S. P., Maxted N. & Lansdown R. V. 2011: European Red List of vascular plants. – Luxembourg: Publication Office of the European Union. Google Scholar


Bölöni J., Molnár Zs. & Kun A. (ed.) 2011: Magyarország élőhelyei. A hazai vegetációtípusok leírása és határozója. ÁNÉR 2011. [Habitats of Hungary. Description and identification of Hungarian types of vegetation. ÁNÉR 2011.] – Vácrátót: MTA ÖBKI. Google Scholar


Bongiorni L., De Vivo R. & Fori S. 2010: Epipactis zaupolensis rivalutata a specie nel Nord Italia raffrontata con E. tallosi nella Republica Ceca. – J. Eur. Orch. 42: 135–148. Google Scholar


Borhidi A. 2003: Magyarország növénytársulásai. – Budapest: Akadémiai Kiadó. Google Scholar


Csábi M., Csirmaz K., Gregorits J., Haszonits Gy., Hernádi L., Kiticsics A., Lukács R., Makádi S., Mar-ton J., Molnár V. A., Nagy T., Pánczél M., Raksányi Zs., Reszler G., Takács A. 2015: Kiegészítések a Magyarország orchideáinak atlasza elterjedési adataihoz. [Additions to the orchid flora of Hungary.] –  Kitaibelia 20: 168–174. Google Scholar


Csiky J. 2006: Adatok Magyarország flórájához és vegetációjához I. [Data to the flora of Hungary I.] –  Kitaibelia 10: 138–153. Google Scholar


Csiszár Á. (ed.) 2012: Inváziós növényfajok Magyarországon. [Invasive plants in Hungary.] – Sopron: Nyugat-magyarországi Egyetem Kiadó. Google Scholar


Danielsen L., Thürmer A., Meinicke P., Buée M., Morin E., Martin F., Pilate G., Daniel R., Polle A. & Reich M. 2012: Fungal soil communities in a young transgenic poplar plantation form a rich reservoir for fungal root communities. –  Ecol. Evol. 2: 1935–1948. Google Scholar


Delforge P. 2006: Orchids of Europe, North Africa and the Middle East. – London: A & C Black. Google Scholar


Đorđević V., Tomović G. & Lakušić D. 2010: Epipactis purpurata Sm. (Orchidaceae): a new species in the flora of Serbia. –  Arch. Biol. Sci. 62: 1175–1179. Google Scholar


EEA 2015: Biogeographical regions, Europe. – European Environment Agency. – Published at [accessed 27 Aug 2018]. Google Scholar


Eliáš P., Dítě D., Kliment J., Hrivnák R. & Feráková V. 2015: Red list of ferns and flowering plants of Slovakia, (October 2014). –  Biologia 70: 218–228. Google Scholar


Esfeld K., Hensen I., Wesche K., Jakob S. S., Tischew S. & Blattner F. R. 2008: Molecular data indicate multiple independent colonizations of former lignite mining areas in eastern Germany by Epipactis palustris (Orchidaceae). –  Biodivers. & Conservation 17: 2441–2453. Google Scholar


Fateryga V. V., Kreutz C. A. J., Fateryga A. V. & Reinhardt J. 2013: Epipactis muelleri Godfery (Orchidaceae), a new species for the flora of Ukraine. – Ukrayins'k. Bot. Zhurn. 70: 652–654. Google Scholar


Fay M. 2011: Epipactis tallosii . – The IUCN Red List of threatened species. Version 2014.2. – Published at [accessed 27 Aug 2018]. Google Scholar


Fekete R., Nagy T., Bódis J., Biró É., Löki V., Süveges K., Takács A., Tökölyi J. & Molnár V. A. 2017: Roadside verges as habitats for endangered lizard-orchids (Himantoglossum spp.): ecological traps or refuges? –   Sci. Total Environm. 607: 1001–1008. Google Scholar


Führer E., Rédei K. & Tóth B. 2009: Ültetvényszerű fatermesztés 1. [Plantation Forestry 1.]. – Budapest: Agroinform kiadó. Google Scholar


Ghazoul J. 2005: Buzziness as usual? Questioning the global pollination crisis. –  Trends Ecol. Evol. 20: 367–373. Google Scholar


Grulich V. 2012: Red List of vascular plants of the Czech Republic. Ed. 3. – Preslia 84: 631–645. Google Scholar


Gügel E., Presser H., Zaiss H. W., Hertel S., Grabner U. & Wucherpfennig W. 2010: Die Gattung Epipactis. – Published at [accessed 27 Aug 2018]. Google Scholar


Heilman P. E. 1999: Planted forests: poplars. –  New Forests 17: 89–93. Google Scholar


Holub J. & Procházka F. 2000: Red List of vascular plants of the Czech Republic 2000. – Preslia 72: 187–230. Google Scholar


Jacquemyn H., Brys R., Hermy M. & Willems J. H. 2005: Does nectar reward affect rarity and extinction probabilities of orchid species? An assessment using historical records from Belgium and the Netherlands. –  Biol. Conservation 121: 257–263. Google Scholar


Jakubska A., Malicka M. & Malicki M. 2005: Apophytic occurrence of sword-leaved helleborine Cephalanthera longifolia (L.) Fritsch (Orchidaceae) in poplar monoculture in Krzyżowe Hills (Lowe Silesia, Poland). – Čas. Slez. Mus., Ser. A, Hist. Nat. 54: 19–24. Google Scholar


Jakubska A., Malicka M. & Malicki M. 2006: New data on the apophytic occurrence of Epipactis helleborine (L.) Crantz and Cephalanthera longifolia (L.) Fritsch in Populus ×canadensis plantation in Lower Silesia (south-western Poland). – Biodivers. Res. Conservation 1–2: 95–97. Google Scholar


Király G. (ed.) 2007: Red list of the vascular flora of Hungary. – Sopron: private edition. Google Scholar


Király G. 2009: Új magyar füvészkönyv. Magyarország hajtásos növényei. Határozókulcsok. [New Hungarian Herbal. The Vascular Plants of Hungary. Identification key.] – Jósvafő: Aggteleki Nemzeti Park Igazgatóság [Aggtelek National Park Directorate]. Google Scholar


Király G., Molnár Zs., Bölöni J., Csiky J. & Vojtkó A. (ed.) 2008: Magyarország földrajzi kistájainak növényzete [Vegetation of geographical micro-landscapes of Hungary]. – Vácrátót: MTA ÖBKI. Google Scholar


Kolník M. & Kučera J. 2002: Doplnky k rozsšíreniu druhov Epipactis tallosii a E. albensis na severe západného Slovenska. [Supplements to distribution of Epipactis tallosii and E. albensis in the north of western Slovakia.] – Bull. Slov. Bot. Spoločn. 24: 91–95. Google Scholar


KSH 2017: A faállománnyal borított erdőterület és az élőfakészlet megoszlása fafajcsoportok és korosztályok szerint, december 31. (2000–). [Distribution of forest cover and living tree stock by tree species and age group, 31 December (2000–)]. – Központi Statisztikai Hivatal [Central Statistical Office of Hungary]. – Published at [accessed 27 Aug 2018]. Google Scholar


Kull T. & Hutchings M. J. 2006: A comparative analysis of decline in the distribution ranges of orchid species in Estonia and the United Kingdom. –   Biol. Conservation 129: 31–39. Google Scholar


Ljubka T., Lovas-Kiss Á., Takács A. & Molnár V. A. 2014: Epipactis albensis (Orchidaceae) in Ukraine – new data on occurrence and ecology. –  Acta Bot. Hung. 56: 399–408. Google Scholar


Löki V., Tökölyi J., Süveges K., Lovas-Kiss Á, Hürkan K., Sramkó G. & Molnár V. A. 2015: The orchid flora of Turkish graveyards: a comprehensive field survey. –  Willdenowia 45: 231–243. Google Scholar


Marron N., Dreyer E., Boudouresque E., Delay D., Petit J. M., Delmotte F. M. & Brignolas F. 2003: Impact of successive drought and re-watering cycles on growth and specific leaf area of two Populus ×canadensis (Moench) clones, ‘Dorskamp’ and ‘Luisa_Avanzo'. –  Tree Physiol. 23: 1225–1235. Google Scholar


Mereďa P. 1996a: Epipactis pseudopurpurata Mereďa, spec. nova (Orchidaceae): eine neue autogame Sitter-Art aus der Slowakei. – Preslia 68: 23–29. Google Scholar


Mereďa P. 1996b: Epipactis komoricensis, spec. nova (Orchidaceae) – eine neue autogame Sitter-Art aus dem E. leptochila-Aggregat aus der Slowakei. – Preslia 68: 125–134. Google Scholar


Mereďa P. 2002: Morphometric and population-biological study of the species Epipactis tallosii (Orchidaceae) on the site in the Ilavská kotlina basin (western Slovakia). – Acta Fac. Rerum Nat. Univ. Comen., Bot. 41: 23–29. Google Scholar


Mereďa P. & Potůček O. 1998: Epipactis futakii, spec. nova (Orchidaceae) – eine neue kleistogam blühende Sitter-Art aus der Slowakei. – Preslia 70: 247–258. Google Scholar


Molnár V. A. 2009: Epipactis tallosii A. Molnár et Robatsch. – P. 576 in: Király G. (ed.), Új magyar füvészkönyv. Magyarország hajtásos növényei. Határozókulcsok. [New Hungarian Herbal. The Vascular Plants of Hungary. Identification key.] – Jósvafő: Aggteleki Nemzeti Park Igazgatóság [Aggtelek National Park Directorate]. Google Scholar


Molnár V. A. (ed.) 2011: The atlas of Hungarian Orchids. [In Hungarian with a summary in German]. – Budapest: Kossuth Kiadó. Google Scholar


Molnár V. A. & Robatsch K. 1997: Epipactis tallosii A. Molnar et K. Robatsch spec. nova, eine neue Epipactis-Art aus Ungarn. – J. Eur. Orch. 28: 787–794. Google Scholar


Molnár V. A. & Sramkó G. 2012: Epipactis albensis Nováková & Rydlo (Orchidaceae): a new species in the flora of Romania. –  Biologia 67: 883–888. Google Scholar


Molnár V. A., Takács A., Mizsei E., Löki V., Barina Z., Sramkó G. & Tökölyi J. 2017: Religious differences affect orchid diversity of Albanian graveyards. – Pakistan J. Bot. 49: 289–303. Google Scholar


Molnár V. A., Vidéki R. & Vlčko J. 1998: Adatok hazai Epipactis-fajok ismeretéhez II. – Kitaibelia 3: 223–225. Google Scholar


Nagy G. 2011: A Mecsek hegység és környékének nőszőfű (Epipactis spp.) fajai. (1999–2010). – e-Acta Nat. Pannon. 2: 5–19. Google Scholar


Nagy T., Nótári K., Takács A., Malkócs T., Tökölyi J. & Molnár V. A. 2018: Precipitation and timing of flowering in ghost orchids (Epipogium aphyllum Sw.). –  Acta Bot. Hung. 60: 223–230. Google Scholar


Nováková H. & Rydlo J. 1978: Epipactis albensis nový autogamický druh z okruhu Epipactis helleborine agg. (Orchidaceae). – Preslia 50: 161–171. Google Scholar


Ouanphanivanh N., Merényi Z., Orczán Á. K., Bratek Z., Szigeti Z. & Illyés Z. 2008: Could orchids indicate truffle habitats? Mycorrhizal association between orchids and truffles. – Acta Biol. Szeged. 52: 229–232. Google Scholar


Pedersen H., Watthana S. & Srimuang K. O. 2013: Orchids in the torrent: on the circumscription, conservation and rheophytic habit of Epipactis flava. –  Bot. J. Linn. Soc. 172: 358–370. Google Scholar


Průša D. 2005: Orchideje České republiky. – Brno: Computer Press. Google Scholar


R Core Team 2018: R: a language and environment for statistical computing. – The R Foundation. – Published at [accessed 27 Aug 2018]. Google Scholar


Rewicz A., Kołodziejek J. & Jakubska-Busse A. 2015: The role of anthropogenic habitats as substitutes for natural habitats: a case study on Epipactis helleborine (L.) Crantz (Orchidaceae, Neottieae). Variations in size and nutrient composition of seeds. –  Turkish J. Bot. 40: 258–268. Google Scholar


Royer-Tardif S., Paquette A., Messier C., Bournival P. & Rivest D. 2018: Fast-growing hybrids do not decrease understorey plant diversity compared to naturally regenerated forests and native plantations. –   Biodivers. & Conservation 27: 607–631. Google Scholar


Shefferson R. P., Kull T. & Tali K. 2008: Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills. –  Amer. J. Bot. 95: 156–164. Google Scholar


Sonkoly J., Vojtkó A. E., Tökölyi J., Török P., Sramkó G., Illyés Z. & Molnár V. A. 2016: Higher seed number compensates for lower fruit set in deceptive orchids. –  J. Ecol. 104: 343–351. Google Scholar


Steffan-Dewenter I., Potts S. G. & Packer L. 2005: Pollinator diversity and crop pollination services are at risk. –  Trends Ecol. Evol. 20: 651–652. Google Scholar


Swarts N. D. & Dixon K. W. 2009: Terrestrial orchid conservation in the age of extinction. –  Ann. Bot. 104: 543–556. Google Scholar


Tĕšitelová T., Tĕšitel J., Jersáková J., Ríhová G. & Selosse M-A. 2012: Symbiotic germination capability of four Epipactis species (Orchidaceae) is broader than expected from adult ecology. –  Amer. J. Bot. 99: 1020–1032. Google Scholar


Tóth I. Zs. 2009: A Völgység flórája, 1. [The flora of Völgység Region, 1.]. – Acta Nat. Pannon. 4: 139–144. Google Scholar


Vlčko J. 1997: Nové druhy rodu Epipactis (Orchidaceae) na Slovensku. – Pp. 84–88 in: Vlčko J. & Hrivnák R. (ed.), Európske vstavačovité (Orchidaceae) – výskum a ochrana. – Banská Bystrica: SAŽP. Google Scholar


Vlčko J., Dítĕ D. & Kolník M. 2003: Orchids of Slovakia. – Zvolen: ZO SZOPK Orchidea. Google Scholar


Vonk M. 2008: Energiethout biodiverser dan gedacht. – Vakbl. Natuur Bos Landschap 1: 9–11. Google Scholar
© 2019 The Authors · This open-access article is distributed under the CC BY 4.0 licence
Kristóf Süveges, Viktor Löki, Ádám Lovas-Kiss, Tibor Ljubka, Réka Fekete, Attila Takács, Orsolya Vincze, Balázs András Lukács, and Attila Molnár V. "From European priority species to characteristic apophyte: Epipactis tallosii (Orchidaceae)," Willdenowia 49(3), 401-409, (4 December 2019).
Received: 9 December 2018; Accepted: 18 October 2019; Published: 4 December 2019
Epipactis tallosii
hybrid poplar clones
IUCN Red List
Back to Top