BUTTONBUSH
Etymology
Noun
buttonbush (plural buttonbushes)
Any of the genus Cephalanthus of flowering plants in the madder family.
(US) Cephalanthus occidentalis, the common buttonbush
Any of the genus Conocarpus of two species of tropical flowering plants; a mangrove.
Hyponyms
• (Cephalanthus): common buttonbush, Mexican buttonbush
Source: Wiktionary
But"ton*bush`, n. (Bot.)
Definition: A shrub (Cephalanthus occidentalis) growing by the waterside; -
- so called from its globular head of flowers. See Capitulum.
Source: Webster’s Unabridged Dictionary 1913 Edition