Christ's-thorn vs Chinese date

Christ's-thorn and Chinese date both are nouns.

Word	Noun	Adjective	Verb	Adverb
Christ's-thorn	Yes	No	No	No
Chinese date	Yes	No	No	No

Christ's-thorn (noun)	Chinese date (noun)
spiny tree having dark red edible fruits	dark red plumlike fruit of Old World buckthorn trees
thorny Eurasian shrub with dry woody winged fruit