On further research, I stand corrected. The chinese plant the hell out of these; I had supposed that Chinese use of chili peppers was a “Chinese-American” thing, like General Tso chicken.
“I’m guessing this refers only to Capsicum annuum, (bell, jalapeno, chilli and related peppers)”
Since the title says “chili” I would guess that also ...
"Chili peppers have been a part of the human diet in the Americas since at least 7500 BC. There is archaeological evidence at sites located in southwestern Ecuador that chili peppers were domesticated more than 6000 years ago, and is one of the first cultivated crops in the Americas that is self-pollinating. "