Cypripedium calceolus
The Trudner Horn Nature Park is home to many variety of rare plant, like are species of pasque flower "Pulsatilla", "Primula", "Leucojum vernum", "Aquilegia einseleana", "Achillea oxyloba", "Artemisia mutellina", "Lilium martagon" and "Lilium bulbiferum", species of "Orchidaceae" (for example "Cypripedium calceolus"), "Cyclamen purpurascens", "Dictamnus albus", "Dianthus carthusianorum", "Armeria alpina", species of "Gentiana", "Iris pseudacorus", edelweiss "Leontopodium alpinum", "Ruscus aculeatus", alpine forget-me-not "Eritrichium nanum", European white waterlily "Nymphaea alba", "Typha", spatterdock "Nuphar lutea", "Physoplexis comosa". In acidic bogs are growing "Drosera" and "Pinguicula".