Ulmus campestris wheatleyi vs Ulmus campestris sarniensis

Ulmus campestris wheatleyi and Ulmus campestris sarniensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ulmus campestris wheatleyi	Yes	No	No	No
Ulmus campestris sarniensis	Yes	No	No	No

As nouns, Ulmus campestris wheatleyi and Ulmus campestris sarniensis are synonyms defined as:

Ulmus campestris wheatleyi and Ulmus campestris sarniensis: a variety of the English elm with erect branches and broader leaves

Other synonyms of Ulmus campestris wheatleyi include guernsey elm, Jersey elm, Ulmus sarniensis, wheately elm.

Ulmus campestris wheatleyi (noun)	Ulmus campestris sarniensis (noun)
a variety of the English elm with erect branches and broader leaves	a variety of the English elm with erect branches and broader leaves