jalapeno vs Capsicum annuum longum

jalapeno and Capsicum annuum longum both are nouns.

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

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

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

Other synonyms of jalapeno include cayenne, cayenne pepper, chili pepper, chilli pepper, long pepper.

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