Historical reference: Do not rely on this information. It is very old. About this collection
Parnassus, Grass of, a beautiful British plant (Parnassia palustris"), of somewhat doubtful affinities among Dicotyledons. It is common in bogs in mountainous regions, bearing heart-shaped) radical leaves, and a solitary creamy-white pentamerous flower, more than an inch across, with delicately veined petals, and five ciliate scale-like nectaries, one at the base of each petal. The five spreading stamens, which are alternate with the petals, rise in succession and burst outwards.