weeping beech vs Fagus sylvatica pendula

weeping beech and Fagus sylvatica pendula both are nouns.

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

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

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

Other synonyms of weeping beech include Fagus pendula.

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