Original: In the United States and Canada , the common heatless species is referred to as '' bell peppers , '' '' sweet peppers , '' '' red/green/etc peppers , '' or simply '' peppers '' , while the hot species are collectively called '' chile/chiles , '' '' chili/chilies , '' or '' chili/chile peppers '' ( one L only ) , '' hot peppers '' , or named as a specific variety ( e.g. , banana pepper ) .
Simplified: In the United Kingdom , Ireland , and Canada , the heatless varieties are called '' peppers '' , '' sweet peppers '' or '' capsicums '' ( or '' green peppers , '' '' red peppers , '' etc ) while the hot ones are '' chilli/chillies '' ( double L ) or '' chilli peppers '' .