D defs.my
Entry 1 sense Webster, 1913

Buttonbush

· But·ton·bush · IPA
01 n. A shrub (Cephalanthus occidentalis) growing by the waterside; -- so called from its globular head of flowers. See Capitulum.
  1. 1.
    A shrub (Cephalanthus occidentalis) growing by the waterside; -- so called from its globular head of flowers. See Capitulum.(Bot.) See: Capitulum