Abstract
The paper presents the current distribution of <i>Orobanche picridis</i> in Poland and Ukraine, within the Polish borders in the interwar period, based on a critical revision of herbarium and literature data as well as the results of my field studies. The largest number of its localities is in S and SE Poland in the Wyżyna Śląsko-Krakowska, Wyżyna Małopolska, Wyżyna Lubelska uplands, Middle Roztocze, Small Polesie, the Pogórze Przemyskie foreland and in the former Tarnopol province (W Ukraine). These are the north-easternmost sites known for the species and extend its limit range. A map of its distribution in Poland and Ukraine is included. The taxonomy, biology, and ecology of <i>O. picridis</i> are also discussed.
Highlights
Localities in Poland and Ukraine are the north-eastern limit of its range
Distribution at NE limit In Poland Orobanche picridis has been reported from 34 localities
In Poland it mostly occurs in the south, in the Wyżyna Śląsko-Krakowska and Wyżyna Małopolska uplands, and in the south-east, in the Wyżyna Lubelska upland, Middle Roztocze, Small Polesie, and the Pogórze Przemyskie foreland (Kotula, 1881; Szeląg, 1996; B r ó ż et al 2001; Kucharczyk, 2001; Piwowarczyk, 2010, 2012a, b, c; Piwowarczyk and Przemyski, 2009, 2010; Piwowarczyk et al 2011; Zając and Zając, 2001) (Figs. 1, 2)
Summary
W. Schultz is a root holoparasite, belonging to the parasitic family Orobanchaceae. Schultz is a root holoparasite, belonging to the parasitic family Orobanchaceae Individual localities occur in southern England and from northern France across the Czech Republic, Slovakia, southern Poland and Romania, Ukraine, Russia. It has been sporadically reported from Asia Minor, the Transcaucasian region and northern Africa (B e c k , 1930; Uhlich et al 1995; Tzvelev , 2006; Pusch and Günther , 2009). The north-easternmost isolated locality was reported from Bryansk village on the Desna in western Russia near the Ukraine/Belarus border (Tzvelev , 2006). The species is threatened with extinction in Poland (Zarzycki , 2001; Piwowarczyk , 2012b) and in the neighbouring countries, i.e. Germany, the Czech Republic, Slovakia (Korneck et al 1996; Feráková et al 2001; Procházka , 2001)
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