basket willow vs purple osier

basket willow and purple osier both are nouns.

Word	Noun	Adjective	Verb	Adverb
basket willow	Yes	No	No	No
purple osier	Yes	No	No	No

As nouns, basket willow and purple osier are synonyms defined as:

basket willow and purple osier: Eurasian osier having reddish or purple twigs and bark rich in tannin

Other synonyms of basket willow include purple willow, red osier, red willow, Salix purpurea.

basket willow (noun)	purple osier (noun)
Eurasian osier having reddish or purple twigs and bark rich in tannin	Eurasian osier having reddish or purple twigs and bark rich in tannin