What is "spireas"

Usage examples of "spireas".

When the morning grayed in the sky and the leaden lake awoke with its first cool flash of silver, the harried man was standing in a small chestnut grove, high above the lake and the city, among ferns and high, flowering spireas damp with dew.

Early in the morning they descended among the strongly scented spireas, the bedewed spider-webs quivering on the margins of the woods, down through the steep, warm forest into the valley of Pampambio where beside the yellow road bright yellow houses slept, bent forward and half dead, stunned by the summer days.