Pyrola rotundifolia

It is a suitable plant for the moist parts of rockwork, where it may be grown with such things as _Cardamine trifolia_, _Galax aphylla_, _Pyrola rotundifolia_, and _Salix reticulata_, and it would form a rich edging to choice dwarf plants, more especially if the position were gutter-formed, as it loves moisture in abundance.

Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. John Wood