Family, Saxifraje Color, white.
Leaves, ovate, acute, petioled, smooth, toothed. Flowers, like the common garden hydrangea, in compound cymes, those along the margin containing showy, petal-like sepals and stamens, sometimes pistils. The central flowers are complete with stamens and pistils, minute calyx-lobes, and small, greenish petal . Occa-sionally all the flowers in the center are staminate