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In some senses, buttonbush is marked as US. Watch for register when choosing this word.
noun
Any of the genus Cephalanthus of flowering plants in the madder family.
Any of the genus Cephalanthus of flowering plants in the madder family.
The buttonbush shrub, which has little white flowers, feeds 18 species of butterflies and moths; and blueberry bushes, which support 288 species of moths and butterflies, thrive in big pots on a terrace.
Any of the genus Conocarpus of two species of tropical flowering plants; a mangrove.