weeping beech vs Fagus pendula

weeping beech and Fagus pendula both are nouns.

Word	Noun	Adjective	Verb	Adverb
weeping beech	Yes	No	No	No
Fagus pendula	Yes	No	No	No

As nouns, weeping beech and Fagus pendula are synonyms defined as:

weeping beech and Fagus pendula: variety of European beech with pendulous limbs

Other synonyms of weeping beech include Fagus sylvatica pendula.

weeping beech (noun)	Fagus pendula (noun)
variety of European beech with pendulous limbs	variety of European beech with pendulous limbs