Mouse-ear \Mouse"-ear`\, n. (Bot.)
(a) The forget-me-not ({Myosotis palustris}) and other
species of the same genus.
(b) A European species of hawkweed ({Hieracium
Pilosella}).
[1913 Webster]
{Mouse-ear chickweed}, a name of two common species of
chickweed ({Cerastium vulgarium}, and {Cerastium
viscosum}).
{Mouse-ear cress}, a low cruciferous herb ({Sisymbrium
Thaliana}). All these are low herbs with soft, oval, or
obovate leaves, whence the name.
[1913 Webster]