Aesculus hippocastanum vs horse chestnut

Aesculus hippocastanum and horse chestnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aesculus hippocastanum	Yes	No	No	No
horse chestnut	Yes	No	No	No

As nouns, Aesculus hippocastanum and horse chestnut are synonyms defined as:

Aesculus hippocastanum and horse chestnut: tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds

Other synonyms of Aesculus hippocastanum include buckeye.

Aesculus hippocastanum (noun)	horse chestnut (noun)
tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds	tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds
	the inedible nutlike seed of the horse chestnut