BOTANICAL NOTE
New localities of Orchis pallens (Orchidaceae) in the Silesian Upland
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Instytut Biologii, Biotechnologii i Ochrony Środowiska, Wydział Nauk Przyrodniczych,
Uniwersytet Śląski, ul. Jagiellońska 28, 40-032 Katowice, Polska
Publication date: 2020-12-30
Fragm. Flor. et Geobot. Pol. 2020; XXVII(2): 739-742
ABSTRACT
The paper presents
two new localities of Orchis pallens in the Chełm mesoregion (Silesian Upland, S Poland), found in
2014 in the vicinity of Ligota Dolna and Oleszka villages in Opole Province. The species occurs in overgrowing
xerothermic grassland communities (Koelerio-Festucetum rupicolae, Origano-Brachypodietum
pinnati, Origano-Vincetoxicetum hirundinariae). The populations consisted of 4 flowering individuals in
Oleszka and 49 (34 flowering) in Ligota Dolna, with slight seasonal fluctuation. The main threats to the
newly found localities of Orchis pallens are succession processes in xerothermic grassland communities.
Active nature protection employing measures such as mowing or shrub removal is required.