Page 177 - Zbornik_Konf_2019

https://doi.org/10.15414/2019.9788055220703

4 International Scientific Conference Abstracts Book
th
ORNAMENTAL HERBACEOUS INTRODUCENTS OF ERGASIOPHYTES RIGHT‐BANK
FOREST‐STEPPE OF UKRAINE
Tetiana Kostruba, Galina Chorna

Pavlo Tychyna Uman State Pedagogical University, Uman, Ukraine;
E-mail.: udpu_botanika@ukr.net
One of the directions of plant use has long been the use of cultivating ornamental
species. Their introduction in the Right-bank Forest-Steppe of Ukraine can be tracked by
literary sources, catalogs of botanical establishments from the XXVIII–XIX centuries.
Subsequently, among the introducents, the species that now form a group of ergasiophytes.
The object of our research is herbaceous ornamental plants, which not only show a
tendency to spread beyond introductory plots and flower gardens in botanical gardens, parks,
farmland but also belong to invasive or potentially invasive species within the limits of
Cherkasy, Vinnitsa, Kyiv regions of Ukraine.
According to our observations in 2016–2018, the most dangerous decorative
ergasiophyte in the Right-bank Forest-Steppe of Ukraine is Solidago canadensis L., which
extends not only to Ruderal habitats of herbaceous perennials on poor soils (C 1.2.1.), but
threatens the change in the cohotic structure of natural groups of Meadow steppes on
chernozems (T 1.3.2.). Ergaziofit Echinocystis lobata (Michx) Torr. et Gray, in addition to
Ruderal habitats, has spread to unpolluted, Herbaceous nitrophilous fringes of lowland rivers
(B 4.1.6.). The invasive species of Asclepias syriaca L., Helianthus tuberosus L., Phytolacca
americana L., Saponaria officinalis L., Symphyotrichum novi‐belgii L. are noted by us as part of
the ruderal biotope groups, in the vicinity of the Right-bank Forest-Steppe of Ukraine
settlements.
The stable tendency to spread near ornamental cultivated biotopes (C 2.2.3 Flower
Garden) in the Right-bank Forest-Steppe of Ukraine has been noted in the following species of
ergasiophytes: Centaurea dealbata Willd., Duchesnea indica (Andr.) Focke, Heliops scabra Dun.,
Hemerocallis fulva (L.) L., Hesperis matronalis L., Lupinus polyphyllus Lindl., Rudbeckia laciniata
L., Silphium perfoliatum L.
Heliops scabra in 2018 we are also registered in a semi-natural biotope (В 4.1.6) in the
floodplain of the Umanka river (Southern Bug Basin) near the city of Uman, Cherkasy region
(Ukraine). Characteristically, all of these species, with the exception of Hesperis matronalis,
belong to perennials forming clones, mainly due to hypogeogenic rhizomes. In Hemerocallis
fulva, there are root bumps that promote vegetative propagation, Lupinus polyphyllus forms
caudae, so the species is not capable of vegetative propagation, but this is offset by high seed
yields. From the ergasiophytes of the annuals, the greatest ability to invasiveness was
detected in Ipomoea purpurea (L.) Roth.
As a result of our research, it has been found that among the ornamental herbaceous
introducents of ergasiophytes of the Right-bank Forest-Steppe of Ukraine there are seven
dangerous invasive and eight potentially invasive species that require studying the state of
populations аnd the sources of their distribution in order to avoid further invasions.

Keywords: ergasiophytes, invasive species, control, Ukraine.

4 International Scientific Conference Agrobiodiversity Nutrition, Health and Quality of Human and Bees Life |177
th
September 11–13, 2019