In the moist dune valleys Parnassia, Dactylorhiza and Centaurium have sprung. Among the flora are the purple "Dactylorhiza maculata" and the witte "Parnassia". Grass of Parnassus ("Parnassia californica") forms small patches of flowers up to . "Parnassia palustris" is native to northern temperate parts of Eurasia. In particular the instrumental sonatas from his opus 2, "Harmonia Parnassia Sonatarum" stand out.