pussy willow

[ poo s-ee ]
/ ˈpʊs i /

noun

a small willow, Salix discolor, of eastern North America, having silky catkins.
any of various similar willows.

Origin of pussy willow

An Americanism dating back to 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for pussy willow

pussy willow
/ (ˈpʊsɪ) /

noun

a willow tree that produces silvery silky catkins, esp Salix caprea or S. cinerea in Britain or S. discolor in North America
any of various similar willows
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012