Any of various woolly plants of the genus Antennaria (family Asteraceae (Compositae)); specifically (more fully "plantain-leaved pussytoes") A. plantaginifolia (also called mouse-ear).
Origin
Late 19th century.
Definition of pussytoes in US English:
pussytoes
(also pussy's-toes)
noun
US
Any of various woolly plants of the genus Antennaria (family Asteraceae (Compositae)); specifically (more fully "plantain-leaved pussytoes") A. plantaginifolia (also called mouse-ear).