1. buttonwillow - Noun
2. Buttonwillow - Proper noun
buttonwillow (plural buttonwillows)
(US) A shrub with round flower heads found near water in California, the Eastern US, and Central America, Cephalanthus occidentalis.
Buttonwillow
A census-designated place in Kern County, California, United States.
Vintage race cars make their way around the track at Buttonwillow Raceway in Buttonwillow, Calif., on Saturday. Source: Internet