Solidago ×snarskisii nothosp. nov. (Asteraceae) from Lithuania and its position in the infrageneric classification of the genus

Gudžinskas, Zigmantas; Žalneravičius, Egidijus

doi:10.11646/phytotaxa.253.2.4

Cited by 28 publications

(48 citation statements)

References 19 publications

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“…The area of the garden was also under a manual weed removal system to eliminate the competition with other species and to increase the chance of hybrid seedling recruitment. The viability of hybrid seedlings (leaf rosettes) was estimated visually based on leaf morphology features (Nilsson 1976;Gudžinskas and Ž alneravičius 2016).…”

Section: Garden Experimentsmentioning

confidence: 99%

“…We excluded from the consideration young vegetative plants, which are difficult to recognize in the field, defining the hybrid individual as a visually separated cluster of mature ramets (generative/sexual and vegetative/asexual stems). The hybrid was identified using morphological features provided by Nilsson (1976) and Gudžinskas and Ž alneravičius (2016).…”

Section: Population Samplingmentioning

confidence: 99%

“…Recent data from Austria and Lithuania indicate that S. 9 niederederi forms locally established populations, associated with the parental species (Pagitz and Lechner-Pagitz 2015;Gudžinskas and Ž alneravičius 2016;Pagitz 2016). In Poland, S. 9 niederederi is known from several dozen localities (Pliszko and Zając 2016) and its naturalization is under consideration.…”

Section: Introductionmentioning

confidence: 99%

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Resolving the naturalization strategy of Solidago × niederederi (Asteraceae) by the production of sexual ramets and seedlings

Pliszko

Kostrakiewicz-Gierałt

2017

Plant Ecol

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In this study, the authors aimed to revise the ability of Solidago 9 niederederi, a hybrid between S. canadensis and S. virgaurea, to produce sexual ramets and seedlings as a part of its naturalization strategy. Based on a two-season garden cultivation experiment, we showed that the hybrid produces more generative ramets than vegetative ones and the number of generative ramets increases from one season to another with an increasing number of stem buds located on the caudices. We also revealed a spontaneous seedling recruitment by the hybrid during cultivation in the garden. Based on the seed germination test under laboratory conditions, we evidenced that the hybrid can reach a higher final germination percentage than S. canadensis but a lower one than S. virgaurea. Based on field studies conducted in 35 populations in Poland, the hybrid formed the largest populations in tree plantations and on abandoned fields, reaching 16.5 and 15.7 ramet clusters on average, respectively. The most abundant populations were found on abandoned fields; however, the mean number of ramets per cluster did not differ remarkably among habitats (H = 6.5, p = 0.163). In all populations, the mean number of vegetative ramets per cluster reached 0.85, while the generative ones achieved 6.43 on average. The statistical analysis proved that the aforementioned differences are significant (t = -12.6, p = 0.0002). Our results suggest that S. 9 niederederi is able to generate its own offspring by sexual reproduction and that abandoned fields seem to be the most suitable habitats for its establishment.

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Section: Garden Experimentsmentioning

confidence: 99%

Section: Population Samplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Resolving the naturalization strategy of Solidago × niederederi (Asteraceae) by the production of sexual ramets and seedlings

Pliszko

Kostrakiewicz-Gierałt

2017

Plant Ecol

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“…The grid cells were arranged according to geographical co-ordinates with sides 6' latitude and 10' longitude. The area of grid cells varies from 116.5 km 2 in the northern to 123.2 km 2 in the southern part of Lithuania (Gudžinskas, 1993). All localities recorded in the same grid cell on the map were marked by a single symbol.…”

Section: Methodsmentioning

confidence: 99%

New woody alien plant species recorded in Lithuania

Gudžinskas

Petrulaitis

Žalneravičius

2017

Botanica Lithuanica

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Gudžinskas Z., Petrulaitis L., Žalneravičius E., 2017: New woody alien plant species recorded in Lithuania. -Bot. Lith., 23(2): 153-168.Many woody plant species that originate from various regions of the world have been introduced in other regions or continents and are used in ornamental gardening, silviculture, erosion control, for fruit sources or other purposes. Woody plants selected for introduction usually originate from regions with similar climate conditions; therefore, after certain time lag they start to spread outside places of cultivation, become naturalized or even invasive. In addition to 77 woody alien plant species reported in Lithuania, ten new species were recorded and analysed in this paper. Information on the native and anthropogenic ranges, first record in Lithuania, size of populations, habitats, reproduction and naturalization of Aralia elata, Berberis thunbergii, Caragana frutex, Celastrus orbiculatus, Cornus alba, Cytisus austriacus, Hydrangea arborescens, Pinus strobus, Rhus typhinaand Thuja occidentalis is presented. All these species have been introduced intentionally and are used mainly in ornamental gardening. Three of the reported species, Berberis thunbergii, Hydrangea arborescens and Thuja occidentalis, currently are casual species. Remaining seven species were recognized as naturalized in Lithuania, and five of these, i.e. Aralia elata, Celastrus orbiculatus, Cornus alba, Pinus strobus and Rhus typhina as well as Berberis thunbergii, which currently is treated as a casual, have very high or high probability of getting invasive. Constant survey of potential habitats, detection of new escaped alien plants, particularly of trees and shrubs, is the best way to reveal potentially dangerous species and make timely decisions for their control or eradication, if necessary.

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“…A. artemisiifolia was first found in Lithuania in 1884, in Latvia in 1936 and in Estonia in 1954 (Tabaka et al, 1988;Gudžinskas, 1993;Saar et al, 2000). A. artemisiifolia is mostly recorded along railways and close to major cities (Herbarium of Institute of Biology of the University of Latvia) (Bullock et al, 2010;Šaulienė and Veriankaitė, 2012).…”

Section: Ragweed In Individual Countries Worldwidementioning

confidence: 99%

The History of Ragweed in the World

Makra

Matyasovszky

Hufnágel

et al. 2015

AEER

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HU-6701 Szeged, P.O.B. 653, Hungary; (phone: +37-70-294-1310; fax: +36-62-544-624) Abstract. The aim of the study is to provide a survey on the history of ragweed worldwide. Its climate dependence, impacts in agriculture, health effects and social costs are also presented. In Europe common ragweed (Ambrosia artemisiifolia) is predominant of all Ambrosia species that is supported by population genetic data. The most important habitat areas of ragweed and the highest pollen concentrations occur, in decreasing order of the pollen levels (1) in the south-western part of the European Russia, (2) in the southern and eastern parts of Ukraine, (3) in the Pannonian Plain in Central Europe, (4) in the Rhône-Alpes region in France, furthermore (5) in the Po River valley in Italy. Besides Europe, ragweed occurs in China, India, Japan and in other Asian countries, furthermore in Australia and the Unites States of America. However, beyond the USA few information are available. Warming trends due to the climate change favours the expansion of ragweed, producing higher pollen levels worldwide. In association with the warming, increasing ambient CO 2 levels generate greater biomass and increased pollen production. Hence, ragweed pollen production can be expected to increase significantly under predicted future climate conditions, bringing severe impacts to areas that have yet been suffering slightly.

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Solidago ×snarskisii nothosp. nov. (Asteraceae) from Lithuania and its position in the infrageneric classification of the genus

Cited by 28 publications

References 19 publications

Resolving the naturalization strategy of Solidago × niederederi (Asteraceae) by the production of sexual ramets and seedlings

Resolving the naturalization strategy of Solidago × niederederi (Asteraceae) by the production of sexual ramets and seedlings

New woody alien plant species recorded in Lithuania

The History of Ragweed in the World

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