Crataegus tomentosa vs pear hawthorn

Crataegus tomentosa and pear hawthorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
Crataegus tomentosa	Yes	No	No	No
pear hawthorn	Yes	No	No	No

As nouns, Crataegus tomentosa and pear hawthorn are synonyms defined as:

Crataegus tomentosa and pear hawthorn: erect and almost thornless American hawthorn with somewhat pear-shaped berries

Other synonyms of Crataegus tomentosa include blackthorn, Crataegus calpodendron, pear haw.

Crataegus tomentosa (noun)	pear hawthorn (noun)
erect and almost thornless American hawthorn with somewhat pear-shaped berries	erect and almost thornless American hawthorn with somewhat pear-shaped berries