Capsicum annuum longum vs jalapeno

Capsicum annuum longum and jalapeno both are nouns.

Word	Noun	Adjective	Verb	Adverb
Capsicum annuum longum	Yes	No	No	No
jalapeno	Yes	No	No	No

As nouns, Capsicum annuum longum and jalapeno are synonyms defined as:

Capsicum annuum longum and jalapeno: plant bearing very hot and finely tapering long peppers; usually red

Other synonyms of Capsicum annuum longum include cayenne, cayenne pepper, chili pepper, chilli pepper, long pepper.

Capsicum annuum longum (noun)	jalapeno (noun)
plant bearing very hot and finely tapering long peppers; usually red	hot green or red pepper of southwestern United States and Mexico
	plant bearing very hot and finely tapering long peppers; usually red