The distribution and habitat requirements of the genus Orobanche L. (Orobanchaceae) in SE Poland

Abstract

The distribution of the genus Orobanche in SE Poland is presented. The study area stretches between the Vistula and the Bug rivers, and comprises the Polish areas of the Lublin-Lwów Upland, the Wołyń Upland and the southern part of Polesie.

Orobanche alba subsp. alba and subsp. major (Orobanchaceae) in Poland: current distribution, taxonomy, plant communities, hosts, and seed micromorphology

“…major were discovered or confirmed in the last 6 years (Piwowarczyk 2010(Piwowarczyk , 2012Piwowarczyk et al 2011 Population size varies greatly between localities and between years. Local populations of Orobanche alba subsp.…”

“…3, Appendix 3). Most of its localities were discovered in (Piwowarczyk 2010, 2012Piwowarczyk et al 2011). Only few records were made in the 1950s and 60s (based on herbarium specimens).…”

Orobanche caryophyllacea Sm. (Orobanchaceae) in Poland: current distribution, taxonomy, plant communities and hosts

“…Machnowska Mt, Wieprzecka Mt) and in river valleys (Vistula, Wieprz, Huczwa, Kamionka, abu ka, So okija, Bystrzyca) or on embankments of early medieval earthwork, on calcareous or loess substrate (especially chalky rendzina and rarely chernozems). It prefers open sites where it occurs in xerothermic grasslands of Cirsio-Brachypodion pinnati alliance, especially communities Thalictro-Salvietum pratensis, Inuletum ensifoliae, AdonidoBrachypodietum pinnati associations, with a high contribution of thermophilous fringe species and shrubs of the Trifolio-Geranietea sanguinei or Rhamno-Prunetea classes [17].…”

“…In Poland the holoparasitic genus Orobanche L. (Orobanchaceae) contains 19 species, including two ephemerophytes [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. These taxa are protected and their majority grow at rare and threatened localities.…”

“…In Central Europe, it mostly occurs on G. mollugo, G. verum, G. boreale and G. odoratum; it has also been reported on G. schultesii, G. glaucum, G. album, G. sylvaticum or G. tunetanum from Algieria [3][4][5]17,20,[23][24][25]. It prefers xerothermic habitats of the Festuco-Brometea class and fringe communities of the Trifolio-Geranietea sanguinei class, especially of the Geranion sanguinei alliance, chiefly in uplands and mountains, e.g.…”