Synonyms for Jalapeno (same or very similar meaning)
WordNet sense 1 (plant bearing very hot and finely tapering long peppers; usually red):
cayenne, long pepper, Capsicum annuum longum, chilli pepper, cayenne pepper, chili pepperWordNet sense 2 (hot green or red pepper of southwestern United States and Mexico):
jalapeno pepperFrom the ODE community, based on WordNetadd/edit