Alnus veridis vs alder

Alnus veridis and alder both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alnus veridis	Yes	No	No	No
alder	Yes	No	No	No

As nouns, alder is a hypernym of Alnus veridis; that is, alder is a word with a broader meaning than Alnus veridis:

Alnus veridis: shrub of mountainous areas of Europe
alder: north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant

Other hypernyms of Alnus veridis include alder tree.

Alnus veridis (noun)	alder (noun)
shrub of mountainous areas of Europe	north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant
	wood of any of various alder trees; resistant to underwater rot; used for bridges etc